Director of Law & Policy, Environmental Integrity Project
Following Princeton and the University of Chicago Law School, David began practicing law at Paul, Weiss, Rifkind, Wharton & Garrison. Eventually tiring of litigation where the result was a wire transfer from Entity A to Entity B, in the early 1990’s David began his environmental law career at the Massachusetts Attorney General’s Office. Since then, he has litigated dozens of cases under all of the major environmental statutes including, as Sierra Club’s Chief Climate Counsel, initiating and managing Massachusetts v. EPA. Most recently, he has been busy challenging FERC’s permitting of natural gas pipelines and LNG export terminals. Apart from litigation, David has helped lead efforts on both greenhouse gas regulation and global warming legislation (and may be the only person ever invited to testify by both Barbara Boxer and James Inhofe).
He has drafted a range of federal climate legislation, advised states as to their greenhouse gas regulatory authority (and for many years has represented environmental groups defending state GHG regulations from dormant Commerce Clause challenges). David has designed and taught courses on “Environmental Litigation” at Georgetown University Law Center and “Environmental Law and Science” at the William and Mary Law School/Virginia Institute of Marine Science.
Director, Climate & Clean Air Program, Natural Resources Defense Council
David Doniger has been at the forefront of the battle against air pollution and global climate change since he joined NRDC in 1978. He helped formulate the Montreal Protocol, an international agreement designed to stop the depletion of the earth's ozone layer, as well as several essential amendments to the Clean Air Act. In 1993, he left NRDC to serve on the White House Council on Environmental Quality, followed by key posts at the U.S. Environmental Protection Agency. He rejoined NRDC in 2001 and has since been working to defend the Clean Air Act from assaults in Congress. He is based in Washington, D.C.
Former Administrator, U.S. Environmental Protection Agency
Scott Pruitt served as the 14th Administrator of the U.S. Environmental Protection Agency.
As Administrator, Mr. Pruitt’s overarching goal was to lead EPA in a way that our future generations inherit a better and healthier environment as he works with the thousands of dedicated public servants at EPA who have devoted their careers to helping realize this shared vision, while faithfully administering environmental laws.
Prior to the EPA, Pruitt served as the Attorney General for Oklahoma. Almost immediately upon taking office, he worked with his Democratic counterpart in Arkansas to reach agreement to study the water quality of the Illinois River, which crosses the border between the two states and has been enjoyed by generations of Oklahomans. The Statement of Joint Principles provides for a best science study using EPA-approved methods, with both states agreeing, for the first time, to be bound by the outcome.
Also during his tenure as Oklahoma’s Attorney General, Pruitt led an historic water rights settlement between Oklahoma, Oklahoma City and the Choctaw and Chickasaw Tribal Nations that preserved the ecosystems of scenic lakes and rivers on native lands. The agreement, which required Congressional approval, was enacted into Section 3608 of Public Law 114-322 and signed in December 2016. It provides a framework that fosters intergovernmental collaboration on significant water resource concerns with the settlement area, while at the same time protecting existing water rights and affirming the state’s role in water rights permitting and administration.
Water settlement cases can be lengthy, costly, divisive and disruptive; however under Pruitt’s forward-thinking leadership, the process was hailed by all parties as one of commitment, hard work, perseverance and cooperation.
Pruitt became a national leader through a career of advocating to keep power in the hands of hard-working Americans. He has a proven track record of working with others – including industry, farmers, ranchers, landowners and small business owners - who want to do the right thing by the environment.
He has dedicated his career to creating policy that serves the people. He strongly believes that environmental law, policy and progress are all based on cooperation between the states, cooperation between the states and EPA, and cooperation between regulators and the public. As Attorney General for Oklahoma, he led the state’s legal challenges against property rights intrusion, while protecting Oklahoma’s natural resources and environment.
He is recognized as a national leader in the cause to restore the proper balance between the states and federal government, and he established Oklahoma’s first federalism unit to combat unwarranted regulation and overreach by the federal government.
Before being elected attorney general, he served eight years in the Oklahoma State Senate where he was a leading voice for fiscal responsibility.
After earning his Bachelor’s Degree from Georgetown College and graduating from the University of Tulsa College of Law, Pruitt went into private legal practice, specializing in constitutional law.
In addition to his life as a civil servant, Pruitt is a successful entrepreneur. As a co-owner and managing general partner of Oklahoma City’s Triple-A minor league baseball affiliate, the Oklahoma City Redhawks, Mr. Pruitt took over the team’s marketing operations and helped the team become one of the minor league leaders in attendance and merchandise sales.
Pruitt is, first and foremost, a family man. He and Marlyn, his wife of 27 years, proudly raised their daughter, McKenna, and son, Cade, in Tulsa. Pruitt has made it a priority to pass on to his children the same principled family values with which he was raised.
Partner, Baker Hostetler LLP
David Rivkin is a member of the firm's litigation, international and environmental teams and is co-leader of the firm's national appellate practice. He has extensive experience in constitutional, administrative and international law litigation and has been involved in numerous high-profile cases. With his prior experience in the government sector, David draws on a wealth of knowledge when providing compliance advice to companies and handling enforcement proceedings before government agencies on issues arising out of multilateral and unilateral sanctions, the Foreign Corrupt Practices Act (FCPA), anti-boycott issues, bankruptcy and financial fraud matters, and environmental and energy issues.
David has developed and implemented legislative, regulatory and litigation initiatives for two presidential administrations. Over the years, he has published hundreds of articles, op-eds, book reviews and book chapters on a variety of international, legal, constitutional, defense, arms control, foreign policy, environmental and energy issues for various newspapers and magazines, including The Wall Street Journal, The Washington Post, The New York Times, USA Today and The Los Angeles Times, and has been a frequent commentator and guest on TV and radio shows including ABC, CBS, NBC, CNN, Fox News, NPR and PBS.
Laurence H. Silberman Chair in Constitutional Governance and Senior Fellow, American Enterprise Institute; Co-Director, Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State
Adam J. White is the Laurence H. Silberman Chair in Constitutional Governance and senior fellow at the American Enterprise Institute, where he focuses on the Supreme Court and the administrative state. Concurrently, he codirects the Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State.
Mr. White practiced constitutional and administrative law, particularly in the regulation of energy and financial markets. He started his legal career as a law clerk for Judge David B. Sentelle at the US Court of Appeals for the DC Circuit.
Mr. White has written for the Wall Street Journal, the New York Times, the Washington Post, National Affairs, Commentary, Harvard Journal of Law & Public Policy, and Notre Dame Law Review, among other publications. He is a regular contributor to the Yale Journal on Regulation’s Notice and Comment blog, and for many years, he was one of the Weekly Standard’s lead writers on constitutional law and the Supreme Court.
Mr. White has testified often before Congress, including before the Senate’s Committees on the Judiciary; Commerce, Science, and Transportation; and Homeland Security and Governmental Affairs and before the House’s Judiciary and Financial Services Committees. In 2018, the Senate Committee on the Judiciary called him to testify in Brett Kavanaugh’s Supreme Court confirmation hearings to advise senators on Kavanaugh’s approach to administrative law.
In 2021, he served on the Presidential Commission on the Supreme Court of the United States, where he criticized “Court packing” and other efforts to restructure the Supreme Court. In 2017, he was appointed to serve on the Administrative Conference of the United States. He also serves on the leadership council for the American Bar Association’s Administrative Law and Regulatory Practice Section, which he will chair in 2023–24. Before joining AEI, he was a research fellow at Stanford University’s Hoover Institution and an adjunct fellow at the Manhattan Institute.
Mr. White has a JD from Harvard Law School and a bachelor of business administration from the College of Business at the University of Iowa.
Chair, Issues & Appeals, Hunton Andrews Kurth LLP
The former Solicitor General of West Virginia, Mr. Lin has been on the front lines of many precedent-setting cases in appellate courts across the country, including in a US Supreme Court victory that George Will called “the court’s most severe rebuke of a president” since the Truman administration. Having argued more than 60 appeals, he brings to clients a well-honed ability to identify the most persuasive issues for appeal and a practiced understanding of how best to frame complex legal questions in appellate courts.
With experience in the private sector and multiple branches of government, Mr. Lin’s practice has spanned a wide range of issues, including major questions of constitutional and administrative law at the federal and state levels. On behalf of more than two dozen states, he won a stay from the US Supreme Court of the EPA’s Clean Power Plan. Described by the New York Times as an “unprecedented” order, the stay was the first time the Supreme Court had ever put a regulation on hold before review by a federal appeals court. In that same case, Elbert argued before the en banc DC Circuit in an historic proceeding that one commenter quoted in E&E News compared to “the NBA All-Star Game.” At the state level, Elbert led the effort that persuaded the West Virginia Supreme Court of Appeals to overturn an injunction of the state’s right-to-work law.
In 2013, Mr. Lin was appointed the Solicitor General of West Virginia. During his four-and-a-half year tenure, he served as a member of the Attorney General’s senior management team, oversaw all civil and criminal appeals, and argued nearly two dozen cases in federal and state appellate courts. He authored more than twenty-five briefs in the US Supreme Court and more than forty-five formal Opinions of the Attorney General.
Earlier in his career, Mr. Lin served as a trial attorney in the Federal Programs Branch of the US Department of Justice’s Civil Division, where he received a Special Service Award. He has also been a law clerk at all three levels of the federal judiciary: for Justice Clarence Thomas on the US Supreme Court; for Judge William H. Pryor Jr. on the US Court of Appeals for the Eleventh Circuit; and for Senior Judge Robert E. Keeton on the US District Court for the District of Massachusetts.
Mr. Lin speaks regularly on a wide variety of topics, including constitutional law, administrative law, environmental law, state and federal relations, the US Supreme Court, and appellate practice. He has testified before Congress, and has spoken at the national conventions of the American Bar Association, the Association of Corporate Counsel, the National Asian Pacific American Bar Association, the Federalist Society, Americans for Prosperity, and the American Legislative Exchange Council. He is an elected member of the American Law Institute, a public member of the Administrative Conference of the United States, and a fellow of the American Academy of Appellate Lawyers.
Mr. Lin is admitted to practice in the following federal courts: the Supreme Court of the United States; the First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Eleventh, D.C., and Federal Circuits; the District of Massachusetts; the Northern and Southern Districts of West Virginia; and the Eastern and Western Districts of Virginia.
District Judge, United States District Court for the Southern District of Florida
Judge Ed Artau is a United States District Judge for the Southern District of
Florida. He was nominated by President Donald Trump for appointment to
the United States District Court in May of 2025, and confirmed by the United
States Senate in September of 2025. Prior to his confirmation, Judge Artau
was appointed by Governor Ron DeSantis to the Fourth District Court of
Appeal of Florida, where he served as an appellate judge from 2020 until
2025. Prior to being an appellate judge, Judge Artau was appointed by
Governor Rick Scott to the Fifteenth Judicial Circuit in Palm Beach County,
Florida, where he served as a trial judge from 2014 until 2020.
Judge Artau is also an Adjunct Professor at St. Thomas University College of
Law and has served as the Dean of the Advanced Judicial Studies College
and on the faculty of both the Florida Judicial College and the Advanced
Judicial Studies College.
Judge Artau has previously served as the Chair of the Fifteenth Circuit
Judicial Nominating Commission, Vice Chair of the Fourth District Court of
Appeal Judicial Nominating Commission, Parliamentarian of the Appellate
Court Rules Committee, Vice Chair of the Judicial Nominating Procedures
Committee, and as a representative on the Florida Court Education Council.
Before his appointment to the bench, Judge Artau served as General Counsel
to the South Florida Water Management District, where he commenced his
public service as a senior litigation attorney. Prior to this role, Judge Artau
managed his own law firm after having served in the litigation departments of
the law firms of Proskauer Rose, L.L.P. and Hodgson Russ, L.L.P.
Judge Artau is a graduate of the Georgetown University Law Center where he
served as a law review editor and Vice-President of the Georgetown Student
Chapter of the Federalist Society. Judge Artau completed his undergraduate
studies at Nova Southeastern University, where he graduated cum laude and
was later awarded a Doctor of Laws, honoris causa, for his commitment to
public service, academia, and the law.
Judge Artau is a founder of the first Lawyers Chapter of the Federalist
Society in Florida and is the 2025 recipient of the Good Shepherd Award,
presented by the Florida Chapters of the Federalist Society in recognition of his “Commitment to the Rule of Law and the Ideals of the Federalist Society.”
General Counsel, United States Environmental Protection Agency
On August 7, 2013, Avi S. Garbow was sworn in as General Counsel for the United States Environmental Protection Agency (EPA). During his tenure as EPA General Counsel, Avi has worked closely on President Obama’s landmark environmental accomplishments, including the Clean Power Plan, Clean Water Rule, and myriad other initiatives to protect public health, improve public access to environmental information, and advance environmental justice. In his role as General Counsel, Avi also leads the EPA’s Office of General Counsel (OGC), an organization of expert lawyers and other professionals responsible for providing legal advice and support for every EPA program and activity.
Prior to his confirmation as General Counsel, Avi served as EPA’s Deputy General Counsel with a primary focus on the Agency’s air and water programs. Avi began his legal career at EPA serving in the Office of Enforcement and Compliance Assurance from 1992 to 1996. Avi then served with distinction as a federal prosecutor in the Department of Justice’s Environmental Crimes Section. In private practice, Avi was a litigation partner and junior partner at two major international firms. Avi has served on the boards of directors for various environmental and international human rights organizations, and has held leadership positions in the American Bar Association’s International Human Rights Committee. He is the recipient of the University of Virginia School of Law’s Robert F. Kennedy Award for Public Service, holds a Master’s Degree in Marine Affairs, and is a former volunteer firefighter.
Partner, Hunton Andrews Kurth
Mr. Leopold is a Partner with the law firm of Hunton Andrews Kurth in Washington, DC. He is the former Senate-confirmed general counsel of the U.S. EPA from 2018-2020, and he previously was a litigator at the U.S. Department of Justice, Environment and Natural Resources Division form 2007-2013. As EPA General Counsel, he counseled on the development and defense of EPA’s most significant rulemakings, including the Affordable Clean Energy Rule, the Navigable Waters Protection Rule, and the Safe Affordable Fuel‐Efficient (SAFE) Vehicles Rule, as well as several pesticide actions. He was personally involved in defending EPA in litigation, including the County of Maui v. Hawaii Wildlife Fund in the U.S. Supreme Court. Mr. Leopold’s prior government service also includes working in Florida as general counsel of the Florida Department of Environmental Protection. He now represents clients in regulatory advocacy before federal agencies, litigates federal environmental actions, and defends clients with EPA enforcement issues.
Shareholder, Gunster
Gregory Munson is a shareholder who joined the firm in 2013.
He twice held senior positions at the Florida Department of Environmental Protection (FDEP). He served as general counsel from 2004 to 2006, and most recently as the deputy secretary for water policy and ecosystem restoration.
In his capacity as deputy secretary, Gregory supervised the Department’s activities related to Everglades restoration, the state’s water management districts, and the state’s coastal and aquatic areas. In between his work at FDEP, he worked as general counsel for WRScompass, a company providing environmental remediation, civil construction and consulting services to commercial, federal and state clients. Gregory now provides strategic advice and counsel on issues related to water policy, water rights and the Everglades.
Professor, Florida State University College of Law
Professor Ryan teaches in the areas of environmental and natural resources law, property and land use, water law, negotiation, and federalism. She has presented widely in the United States, Europe, and Asia, including the Ninth Circuit Judicial Conference, the National Association of Attorneys General, the United States Forest Service, and the United Nations Institute for Training and Research. She has advised National Sea Grant multilevel governance studies involving Chesapeake Bay and consulted with multiple institutions on developing sustainability programs. She has been featured in the Chicago Tribune, the London Financial Times, the Associated Press, Thomson-Reuters Beijing, the Huffington Post, National Public Radio, and NBC and CBS Television News. She is the author of many scholarly works, including Federalism and the Tug of War Within (Oxford University Press 2012).
Prior to law school, Ryan served as a U.S. Forest Service ranger on the Mono Lake District of the Inyo National Forest, east of Yosemite National Park. While a law student, she was an editor of the Harvard Law Review and a Hewlett Fellow at the Harvard Negotiation Research Project. She clerked for Judge James R. Browning, of the U.S. Court of Appeals for the Ninth Circuit, before practicing environmental, land use, and local government law in San Francisco. She began her academic career at the College of William & Mary, and then joined the faculty at the Northwestern School of Law at Lewis & Clark College. Ryan served as a Fulbright Scholar in China, where she taught American law, studied Chinese governance, and lectured throughout the country. She has also lectured at universities in Japan, Vietnam and India. She joined the Florida State University College of Law faculty in 2015.
Partner, Consovoy McCarthy Park PLLC
Mr. Strawbridge provides clients with advice and representation at the pre-litigation, trial, and appellate stages. He has represented a broad range of individual and institutional clients on matters of constitutional law, financial and securities regulation, environmental laws, complex commercial disputes, and consumer protection statutes. His experience includes arbitrations, trial and appellate litigation, and administrative and regulatory proceedings.
Mr. Strawbridge served as a law clerk to Supreme Court Justice Clarence Thomas, Judge Morris Sheppard Arnold of the United States Court of Appeals for the Eighth Circuit, and Justice Howard Dana of the Supreme Judicial Court of Maine. Previously, Mr. Strawbridge was a partner at two large international law firms. He worked as a newspaper reporter for four years before attending law school. Mr. Strawbridge is an adjunct professor for the Supreme Court Clinic at the Antonin Scalia Law School at George Mason University.
Mr. Strawbridge earned a Bachelor of Journalism from the University of Missouri, and his J.D. summa cum laude from Creighton University School of Law. Mr. Strawbridge is a member of the Maine and Massachusetts bars.
Chair, Issues & Appeals, Hunton Andrews Kurth LLP
The former Solicitor General of West Virginia, Mr. Lin has been on the front lines of many precedent-setting cases in appellate courts across the country, including in a US Supreme Court victory that George Will called “the court’s most severe rebuke of a president” since the Truman administration. Having argued more than 60 appeals, he brings to clients a well-honed ability to identify the most persuasive issues for appeal and a practiced understanding of how best to frame complex legal questions in appellate courts.
With experience in the private sector and multiple branches of government, Mr. Lin’s practice has spanned a wide range of issues, including major questions of constitutional and administrative law at the federal and state levels. On behalf of more than two dozen states, he won a stay from the US Supreme Court of the EPA’s Clean Power Plan. Described by the New York Times as an “unprecedented” order, the stay was the first time the Supreme Court had ever put a regulation on hold before review by a federal appeals court. In that same case, Elbert argued before the en banc DC Circuit in an historic proceeding that one commenter quoted in E&E News compared to “the NBA All-Star Game.” At the state level, Elbert led the effort that persuaded the West Virginia Supreme Court of Appeals to overturn an injunction of the state’s right-to-work law.
In 2013, Mr. Lin was appointed the Solicitor General of West Virginia. During his four-and-a-half year tenure, he served as a member of the Attorney General’s senior management team, oversaw all civil and criminal appeals, and argued nearly two dozen cases in federal and state appellate courts. He authored more than twenty-five briefs in the US Supreme Court and more than forty-five formal Opinions of the Attorney General.
Earlier in his career, Mr. Lin served as a trial attorney in the Federal Programs Branch of the US Department of Justice’s Civil Division, where he received a Special Service Award. He has also been a law clerk at all three levels of the federal judiciary: for Justice Clarence Thomas on the US Supreme Court; for Judge William H. Pryor Jr. on the US Court of Appeals for the Eleventh Circuit; and for Senior Judge Robert E. Keeton on the US District Court for the District of Massachusetts.
Mr. Lin speaks regularly on a wide variety of topics, including constitutional law, administrative law, environmental law, state and federal relations, the US Supreme Court, and appellate practice. He has testified before Congress, and has spoken at the national conventions of the American Bar Association, the Association of Corporate Counsel, the National Asian Pacific American Bar Association, the Federalist Society, Americans for Prosperity, and the American Legislative Exchange Council. He is an elected member of the American Law Institute, a public member of the Administrative Conference of the United States, and a fellow of the American Academy of Appellate Lawyers.
Mr. Lin is admitted to practice in the following federal courts: the Supreme Court of the United States; the First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Eleventh, D.C., and Federal Circuits; the District of Massachusetts; the Northern and Southern Districts of West Virginia; and the Eastern and Western Districts of Virginia.
District Judge, United States District Court for the Southern District of Florida
Judge Ed Artau is a United States District Judge for the Southern District of
Florida. He was nominated by President Donald Trump for appointment to
the United States District Court in May of 2025, and confirmed by the United
States Senate in September of 2025. Prior to his confirmation, Judge Artau
was appointed by Governor Ron DeSantis to the Fourth District Court of
Appeal of Florida, where he served as an appellate judge from 2020 until
2025. Prior to being an appellate judge, Judge Artau was appointed by
Governor Rick Scott to the Fifteenth Judicial Circuit in Palm Beach County,
Florida, where he served as a trial judge from 2014 until 2020.
Judge Artau is also an Adjunct Professor at St. Thomas University College of
Law and has served as the Dean of the Advanced Judicial Studies College
and on the faculty of both the Florida Judicial College and the Advanced
Judicial Studies College.
Judge Artau has previously served as the Chair of the Fifteenth Circuit
Judicial Nominating Commission, Vice Chair of the Fourth District Court of
Appeal Judicial Nominating Commission, Parliamentarian of the Appellate
Court Rules Committee, Vice Chair of the Judicial Nominating Procedures
Committee, and as a representative on the Florida Court Education Council.
Before his appointment to the bench, Judge Artau served as General Counsel
to the South Florida Water Management District, where he commenced his
public service as a senior litigation attorney. Prior to this role, Judge Artau
managed his own law firm after having served in the litigation departments of
the law firms of Proskauer Rose, L.L.P. and Hodgson Russ, L.L.P.
Judge Artau is a graduate of the Georgetown University Law Center where he
served as a law review editor and Vice-President of the Georgetown Student
Chapter of the Federalist Society. Judge Artau completed his undergraduate
studies at Nova Southeastern University, where he graduated cum laude and
was later awarded a Doctor of Laws, honoris causa, for his commitment to
public service, academia, and the law.
Judge Artau is a founder of the first Lawyers Chapter of the Federalist
Society in Florida and is the 2025 recipient of the Good Shepherd Award,
presented by the Florida Chapters of the Federalist Society in recognition of his “Commitment to the Rule of Law and the Ideals of the Federalist Society.”
General Counsel, United States Environmental Protection Agency
On August 7, 2013, Avi S. Garbow was sworn in as General Counsel for the United States Environmental Protection Agency (EPA). During his tenure as EPA General Counsel, Avi has worked closely on President Obama’s landmark environmental accomplishments, including the Clean Power Plan, Clean Water Rule, and myriad other initiatives to protect public health, improve public access to environmental information, and advance environmental justice. In his role as General Counsel, Avi also leads the EPA’s Office of General Counsel (OGC), an organization of expert lawyers and other professionals responsible for providing legal advice and support for every EPA program and activity.
Prior to his confirmation as General Counsel, Avi served as EPA’s Deputy General Counsel with a primary focus on the Agency’s air and water programs. Avi began his legal career at EPA serving in the Office of Enforcement and Compliance Assurance from 1992 to 1996. Avi then served with distinction as a federal prosecutor in the Department of Justice’s Environmental Crimes Section. In private practice, Avi was a litigation partner and junior partner at two major international firms. Avi has served on the boards of directors for various environmental and international human rights organizations, and has held leadership positions in the American Bar Association’s International Human Rights Committee. He is the recipient of the University of Virginia School of Law’s Robert F. Kennedy Award for Public Service, holds a Master’s Degree in Marine Affairs, and is a former volunteer firefighter.
Partner, Hunton Andrews Kurth
Mr. Leopold is a Partner with the law firm of Hunton Andrews Kurth in Washington, DC. He is the former Senate-confirmed general counsel of the U.S. EPA from 2018-2020, and he previously was a litigator at the U.S. Department of Justice, Environment and Natural Resources Division form 2007-2013. As EPA General Counsel, he counseled on the development and defense of EPA’s most significant rulemakings, including the Affordable Clean Energy Rule, the Navigable Waters Protection Rule, and the Safe Affordable Fuel‐Efficient (SAFE) Vehicles Rule, as well as several pesticide actions. He was personally involved in defending EPA in litigation, including the County of Maui v. Hawaii Wildlife Fund in the U.S. Supreme Court. Mr. Leopold’s prior government service also includes working in Florida as general counsel of the Florida Department of Environmental Protection. He now represents clients in regulatory advocacy before federal agencies, litigates federal environmental actions, and defends clients with EPA enforcement issues.
Shareholder, Gunster
Gregory Munson is a shareholder who joined the firm in 2013.
He twice held senior positions at the Florida Department of Environmental Protection (FDEP). He served as general counsel from 2004 to 2006, and most recently as the deputy secretary for water policy and ecosystem restoration.
In his capacity as deputy secretary, Gregory supervised the Department’s activities related to Everglades restoration, the state’s water management districts, and the state’s coastal and aquatic areas. In between his work at FDEP, he worked as general counsel for WRScompass, a company providing environmental remediation, civil construction and consulting services to commercial, federal and state clients. Gregory now provides strategic advice and counsel on issues related to water policy, water rights and the Everglades.
Professor, Florida State University College of Law
Professor Ryan teaches in the areas of environmental and natural resources law, property and land use, water law, negotiation, and federalism. She has presented widely in the United States, Europe, and Asia, including the Ninth Circuit Judicial Conference, the National Association of Attorneys General, the United States Forest Service, and the United Nations Institute for Training and Research. She has advised National Sea Grant multilevel governance studies involving Chesapeake Bay and consulted with multiple institutions on developing sustainability programs. She has been featured in the Chicago Tribune, the London Financial Times, the Associated Press, Thomson-Reuters Beijing, the Huffington Post, National Public Radio, and NBC and CBS Television News. She is the author of many scholarly works, including Federalism and the Tug of War Within (Oxford University Press 2012).
Prior to law school, Ryan served as a U.S. Forest Service ranger on the Mono Lake District of the Inyo National Forest, east of Yosemite National Park. While a law student, she was an editor of the Harvard Law Review and a Hewlett Fellow at the Harvard Negotiation Research Project. She clerked for Judge James R. Browning, of the U.S. Court of Appeals for the Ninth Circuit, before practicing environmental, land use, and local government law in San Francisco. She began her academic career at the College of William & Mary, and then joined the faculty at the Northwestern School of Law at Lewis & Clark College. Ryan served as a Fulbright Scholar in China, where she taught American law, studied Chinese governance, and lectured throughout the country. She has also lectured at universities in Japan, Vietnam and India. She joined the Florida State University College of Law faculty in 2015.
Partner, Consovoy McCarthy Park PLLC
Mr. Strawbridge provides clients with advice and representation at the pre-litigation, trial, and appellate stages. He has represented a broad range of individual and institutional clients on matters of constitutional law, financial and securities regulation, environmental laws, complex commercial disputes, and consumer protection statutes. His experience includes arbitrations, trial and appellate litigation, and administrative and regulatory proceedings.
Mr. Strawbridge served as a law clerk to Supreme Court Justice Clarence Thomas, Judge Morris Sheppard Arnold of the United States Court of Appeals for the Eighth Circuit, and Justice Howard Dana of the Supreme Judicial Court of Maine. Previously, Mr. Strawbridge was a partner at two large international law firms. He worked as a newspaper reporter for four years before attending law school. Mr. Strawbridge is an adjunct professor for the Supreme Court Clinic at the Antonin Scalia Law School at George Mason University.
Mr. Strawbridge earned a Bachelor of Journalism from the University of Missouri, and his J.D. summa cum laude from Creighton University School of Law. Mr. Strawbridge is a member of the Maine and Massachusetts bars.
District Judge, United States District Court for the Southern District of Florida
Judge Ed Artau is a United States District Judge for the Southern District of
Florida. He was nominated by President Donald Trump for appointment to
the United States District Court in May of 2025, and confirmed by the United
States Senate in September of 2025. Prior to his confirmation, Judge Artau
was appointed by Governor Ron DeSantis to the Fourth District Court of
Appeal of Florida, where he served as an appellate judge from 2020 until
2025. Prior to being an appellate judge, Judge Artau was appointed by
Governor Rick Scott to the Fifteenth Judicial Circuit in Palm Beach County,
Florida, where he served as a trial judge from 2014 until 2020.
Judge Artau is also an Adjunct Professor at St. Thomas University College of
Law and has served as the Dean of the Advanced Judicial Studies College
and on the faculty of both the Florida Judicial College and the Advanced
Judicial Studies College.
Judge Artau has previously served as the Chair of the Fifteenth Circuit
Judicial Nominating Commission, Vice Chair of the Fourth District Court of
Appeal Judicial Nominating Commission, Parliamentarian of the Appellate
Court Rules Committee, Vice Chair of the Judicial Nominating Procedures
Committee, and as a representative on the Florida Court Education Council.
Before his appointment to the bench, Judge Artau served as General Counsel
to the South Florida Water Management District, where he commenced his
public service as a senior litigation attorney. Prior to this role, Judge Artau
managed his own law firm after having served in the litigation departments of
the law firms of Proskauer Rose, L.L.P. and Hodgson Russ, L.L.P.
Judge Artau is a graduate of the Georgetown University Law Center where he
served as a law review editor and Vice-President of the Georgetown Student
Chapter of the Federalist Society. Judge Artau completed his undergraduate
studies at Nova Southeastern University, where he graduated cum laude and
was later awarded a Doctor of Laws, honoris causa, for his commitment to
public service, academia, and the law.
Judge Artau is a founder of the first Lawyers Chapter of the Federalist
Society in Florida and is the 2025 recipient of the Good Shepherd Award,
presented by the Florida Chapters of the Federalist Society in recognition of his “Commitment to the Rule of Law and the Ideals of the Federalist Society.”
General Counsel, United States Environmental Protection Agency
On August 7, 2013, Avi S. Garbow was sworn in as General Counsel for the United States Environmental Protection Agency (EPA). During his tenure as EPA General Counsel, Avi has worked closely on President Obama’s landmark environmental accomplishments, including the Clean Power Plan, Clean Water Rule, and myriad other initiatives to protect public health, improve public access to environmental information, and advance environmental justice. In his role as General Counsel, Avi also leads the EPA’s Office of General Counsel (OGC), an organization of expert lawyers and other professionals responsible for providing legal advice and support for every EPA program and activity.
Prior to his confirmation as General Counsel, Avi served as EPA’s Deputy General Counsel with a primary focus on the Agency’s air and water programs. Avi began his legal career at EPA serving in the Office of Enforcement and Compliance Assurance from 1992 to 1996. Avi then served with distinction as a federal prosecutor in the Department of Justice’s Environmental Crimes Section. In private practice, Avi was a litigation partner and junior partner at two major international firms. Avi has served on the boards of directors for various environmental and international human rights organizations, and has held leadership positions in the American Bar Association’s International Human Rights Committee. He is the recipient of the University of Virginia School of Law’s Robert F. Kennedy Award for Public Service, holds a Master’s Degree in Marine Affairs, and is a former volunteer firefighter.
Partner, Hunton Andrews Kurth
Mr. Leopold is a Partner with the law firm of Hunton Andrews Kurth in Washington, DC. He is the former Senate-confirmed general counsel of the U.S. EPA from 2018-2020, and he previously was a litigator at the U.S. Department of Justice, Environment and Natural Resources Division form 2007-2013. As EPA General Counsel, he counseled on the development and defense of EPA’s most significant rulemakings, including the Affordable Clean Energy Rule, the Navigable Waters Protection Rule, and the Safe Affordable Fuel‐Efficient (SAFE) Vehicles Rule, as well as several pesticide actions. He was personally involved in defending EPA in litigation, including the County of Maui v. Hawaii Wildlife Fund in the U.S. Supreme Court. Mr. Leopold’s prior government service also includes working in Florida as general counsel of the Florida Department of Environmental Protection. He now represents clients in regulatory advocacy before federal agencies, litigates federal environmental actions, and defends clients with EPA enforcement issues.
Shareholder, Gunster
Gregory Munson is a shareholder who joined the firm in 2013.
He twice held senior positions at the Florida Department of Environmental Protection (FDEP). He served as general counsel from 2004 to 2006, and most recently as the deputy secretary for water policy and ecosystem restoration.
In his capacity as deputy secretary, Gregory supervised the Department’s activities related to Everglades restoration, the state’s water management districts, and the state’s coastal and aquatic areas. In between his work at FDEP, he worked as general counsel for WRScompass, a company providing environmental remediation, civil construction and consulting services to commercial, federal and state clients. Gregory now provides strategic advice and counsel on issues related to water policy, water rights and the Everglades.
Professor, Florida State University College of Law
Professor Ryan teaches in the areas of environmental and natural resources law, property and land use, water law, negotiation, and federalism. She has presented widely in the United States, Europe, and Asia, including the Ninth Circuit Judicial Conference, the National Association of Attorneys General, the United States Forest Service, and the United Nations Institute for Training and Research. She has advised National Sea Grant multilevel governance studies involving Chesapeake Bay and consulted with multiple institutions on developing sustainability programs. She has been featured in the Chicago Tribune, the London Financial Times, the Associated Press, Thomson-Reuters Beijing, the Huffington Post, National Public Radio, and NBC and CBS Television News. She is the author of many scholarly works, including Federalism and the Tug of War Within (Oxford University Press 2012).
Prior to law school, Ryan served as a U.S. Forest Service ranger on the Mono Lake District of the Inyo National Forest, east of Yosemite National Park. While a law student, she was an editor of the Harvard Law Review and a Hewlett Fellow at the Harvard Negotiation Research Project. She clerked for Judge James R. Browning, of the U.S. Court of Appeals for the Ninth Circuit, before practicing environmental, land use, and local government law in San Francisco. She began her academic career at the College of William & Mary, and then joined the faculty at the Northwestern School of Law at Lewis & Clark College. Ryan served as a Fulbright Scholar in China, where she taught American law, studied Chinese governance, and lectured throughout the country. She has also lectured at universities in Japan, Vietnam and India. She joined the Florida State University College of Law faculty in 2015.
Partner, Consovoy McCarthy Park PLLC
Mr. Strawbridge provides clients with advice and representation at the pre-litigation, trial, and appellate stages. He has represented a broad range of individual and institutional clients on matters of constitutional law, financial and securities regulation, environmental laws, complex commercial disputes, and consumer protection statutes. His experience includes arbitrations, trial and appellate litigation, and administrative and regulatory proceedings.
Mr. Strawbridge served as a law clerk to Supreme Court Justice Clarence Thomas, Judge Morris Sheppard Arnold of the United States Court of Appeals for the Eighth Circuit, and Justice Howard Dana of the Supreme Judicial Court of Maine. Previously, Mr. Strawbridge was a partner at two large international law firms. He worked as a newspaper reporter for four years before attending law school. Mr. Strawbridge is an adjunct professor for the Supreme Court Clinic at the Antonin Scalia Law School at George Mason University.
Mr. Strawbridge earned a Bachelor of Journalism from the University of Missouri, and his J.D. summa cum laude from Creighton University School of Law. Mr. Strawbridge is a member of the Maine and Massachusetts bars.
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