Eren Lawyers Lawyers


In brief

Practice Areas / Expertise

  • International Arbitration/Litigation
  • Sovereign Immunity
  • International Judicial Assistance
  • Diplomatic Immunity
  • International Treaties


  • Washington, D.C.
  • New York
  • Ohio


  • Georgetown University, L.L.M.
  • Western Reserve University, J.D.


  • English
  • German
  • Spanish
  • French
  • Polish

Professional Associations

  • International Law Institute
  • American Society of International Law


  • U.S. Department of Justice (Director of Office of Foreign Litigation), 1963 - 1981
  • Private Law Practice, 1982 - present
  • Special Counsel to The Eren Law Firm, since 5/2004

Bruno A. Ristau

Bruno A. Ristau is special counsel to The Eren Law Firm. Mr. Ristau is a member of the bars of the District of Columbia, New York, and Ohio. He has a J.D. degree (Western Reserve University, 1958) and an LL.M. degree in international law (Georgetown University, 1960). From 1963-1981 he served as Director of the Office of Foreign Litigation at the U.S. Department of Justice, in which position he supervised all suits by or against the United States in foreign courts. He is a co-author of the U.S. Foreign Sovereign Immunities Act of 1976 and testified before Congress in support of the Act. He served as the U.S. Delegate to The Hague Conference on Private International Law in 1977-1978.

Mr Ristau has been an adjunct professor of law at The American University and The George Washington University in Washington, D.C. since 1984, and in 1993 was a visiting professor of law. Mr. Ristau teaches courses on international commercial arbitration, international judicial assistance, international trade, and conflict of laws. He is the author of a two-volume treatise entitled International Judicial Assistance, Civil and Commercial, published by the International Law Institute in Washington, D.C. and periodically updated.

Mr. Ristau's practice consists of transnational litigation and international commercial arbitration. He frequently represents foreign governments and international companies in court. See, e.g., Republic of Argentina v. Amerada Hess Shipping Corp, 488 U.S. 428 (1989). Mr. Ristau has served as a sole arbitrator and as a member of AAA and ICC arbitration panels, and he has chaired an ICC panel in a $200-million transnational commercial dispute. Mr. Ristau also advises clients on a variety of international law matters including but not limited to, sovereign immunity, diplomatic immunity, and international treaties. In addition to English, Mr. Ristau is fluent in German and Polish and has a working knowledge of French and Spanish.

Mr. Ristau's Selected Reported Cases: