Mickey Leibner

Congressional Investigations, Public Policy, Regulatory & Government Affairs, International Trade

Visión general

Mickey, an associate in the International Trade and Public Policy, Regulatory & Government Affairs groups in Mayer Brown's Washington DC office, helps clients navigate the intersection of regulatory and political matters.

Mickey has significant experience before the Committee on Foreign Investment in the United States (CFIUS) and has advised on hundreds of transactions involving companies ranging from multinational Fortune 500 corporations to small startups. He counsels clients on all aspects of the CFIUS process—from analyzing transactions to determine if a CFIUS filing is required or recommended, to drafting CFIUS filings, responding to questions from CFIUS, and negotiating and implementing mitigation agreements.

Mickey also advises a variety of clients in the private, nonprofit, and government sectors on a number of political law, campaign finance, and lobbying compliance issues, especially with respect to the Lobbying Disclosure Act, the Foreign Agents Registration Act, and political action committees. He helps clients implement internal political law compliance processes, as well as create a range of nonprofit and political organizations. Mickey also lobbies and advocates regularly to US congressional staff and elected officials, and is particularly adept at helping clients navigate interactions with local, state, and federal governments.

Previously, Mickey was the Director of Government Relations at a small lobbying firm, where he led its domestic portfolio, lobbied on behalf of international clients, and ran the firm's day-to-day operations. He has also spent time working on numerous local and federal political campaigns.


  • George Washington University Law School, JD
  • Tufts University, BA, cum laude, Political Science


  • Maryland
  • District of Columbia