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Mark provides legal advice, expert testimony and arbitration services to firm clients and other attorneys on a wide variety of matters involving international investment and international law.

His areas of concentration include international commercial and investment arbitration, international claims and political risk protection, act of state doctrine, foreign sovereign immunity (FSIA), foreign corrupt practices (FCPA), international art law, and constitutional issues relating to U.S. foreign policy.

As deputy and acting legal adviser of the U.S. Department of State, Mark had a significant role in drafting or negotiating legal regimes of intense practical interest today, including the Foreign Sovereign Immunities Act (FSIA), Foreign Corrupt Practices Act (FCPA), Iran and Cuba sanctions, the Iran Claims Agreement, maritime boundaries and the UNESCO Convention on Cultural Property.

Mark Feldman on Foreign Relations Law

Mark's web page for detailed credentials and comments: FSIA, expropriation, act of state, FCPA, and restitution of cultural property.

Professional Activities

  • American Bar Association, Member
    • Committee on Art and Cultural Heritage Law, Co-Chair, 2009-2011
    • International Law Section
      • Past Council Member and Chairman
      • Committee on Foreign Sovereign Immunity
  • American Society of International Law, Member
  • Council on Foreign Relations, Member
  • Georgetown University Law Center, Adjunct Professor, 2006-present
  • Johns Hopkins School of Advanced International Studies, Adjunct Professor, 2006-2009



News & Insights

Speaking Engagements

Past Appearances

  • "Unresolved Maritime Boundary Problems in the Caribbean," Law of the Sea Institute, Law of the Sea in the Gulf of Mexico and Caribbean: Unresolved Issues and Challenges
    Speaking Engagement
    Texas A&M University, Corpus Christi, TX, 3.22.07


  • District of Columbia, 1974
  • New York, 1961


  • LL.B., Harvard Law School (magna cum laude), 1960
    • Harvard Law Review
  • A.B., Wesleyan University, A.B., 1957
    • Phi Beta Kappa
  • Diplôme, University of Paris,1956

Honors & Recognition

Martindale-Hubbell AV Preeminent rating


  • French
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