FacultyFaculty/Author Profile

Mara V.J. Senn

Arnold & Porter LLP
Washington, DC, USA

Mara Senn is a trial lawyer who focuses on white collar criminal law and international arbitration. She has litigated cases in United States District Courts, Courts of Appeals, and the United States Supreme Court, as well as various international fora. She has obtained Top Secret security clearance from the US government. Ms. Senn speaks French and Spanish.

Ms. Senn's White Collar practice focuses on the Foreign Corrupt Practices Act. She regularly leads FCPA investigations conducted around the world and counsels clients on FCPA compliance issues. She also appears before the SEC and DOJ on behalf of her clients. In addition, Ms. Senn often speaks and writes about important FCPA topics and trends. Ms. Senn is a member of the Edward Bennett Williams White Collar Inn of Court.

Ms. Senn also focuses her practices on international arbitration and she is the chair of the International Arbitration group's energy committee. She was listed as a "name to know" in the Global Arbitration Review (GAR) 100, The Guide To Specialist Arbitration Firms 2010. In addition to commercial arbitration, a large part of Ms. Senn's practice focuses on investor-state disputes in front of the International Centre for Settlement of Investment Disputes (ICSID), in which she represents either claimants or sovereign respondents. She has also represented clients in front of ad hoc tribunals and tribunals under the United National Commission on International Trade Law (UNCITRAL) Rules. She addresses all aspects of an international arbitration from the inception of the arbitration through the hearing phase to settlement or enforcement. Ms. Senn is the North America editor for the IBA Arbitration News and is a Steering Group Member of the International Arbitration Committee of the ABA Section of International Law.


  • JD, cum laude New York University School of Law, 1998
  • BA, Swarthmore College, 1992 
  • District of Columbia


  • Virginia
  • Supreme Court of the United States
  • US Court of Federal Claims
  • US Court of Appeals for the Fifth Circuit
  • US Court of Appeals for the Fourth Circuit
  • US District Court for the District of Columbia

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