Luke P. Levasseur

Luke P. Levasseur

Counsel, Mayer Brown

Luke Levasseur has been representing clients in complex federal litigation for more than 20 years and currently focuses his practice on government contract matters. He represents clients in large contract disputes and bid protests before the US Court of Federal Claims and the Government Accountability Office. He has represented clients in federal and state False Claims Act cases, presenting arguments in federal court and conducting internal investigations for clients. Luke also has experience handling a variety of other federal court litigation for clients, involving such matters as antitrust claims, trademark disputes, and alleged fraud.

Prior to re-joining Mayer Brown in 2006, Luke represented the federal government as an attorney with the Civil Division of the US Department of Justice from 1997-2006. He served as lead counsel for, or had a significant role during the trial and appeal of, several large cases that were part of the Winstar-related litigation, which involved billions of dollars in claims against the government and were based on legislative and regulatory changes in the financial services industry. In those cases, he was responsible for developing and presenting expert opinion testimony from the government’s witnesses, including a Nobel-prize winning economist, and for cross-examining other parties’ experts. Throughout his career, Luke has focused on expert witness issues in complex litigation.


When he was with the Department of Justice, Luke also represented the government in numerous appeals before the US Court of Appeals for the Federal Circuit. He was awarded the John Marshall Award for Outstanding Legal Achievement and a Special Commendation Award for exceptional contributions to the defense of the Winstar cases. Luke continues to be an active part of the Court of Federal Claims bar and served as the President of that Court's Bar Association during 2012.


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