Hal Eren


Hal Eren is the lead partner and attorney in the Eren Law Firm’s widely respected economic sanctions and corporate team. He successfully settled numerous sanctions disputes and obtained hundreds of licenses and interpretations favorable to clients. He possesses a unique wealth and combination of knowledge and experience which he brings to his clients’ cases. With an eye for detail and Detail-oriented and a practical approach, Mr. Eren provides clients with guidance and advice based on the law and the unique aspects of the case.

Mr. Eren advises and represents clients with respect to corporate matters, economic sanctions, export controls, anti-money laundering laws, laws governing business integrity, and related dispute resolution. Given his years at the U.S. Treasury, Mr. Eren has particular expertise in dealing with the impact of U.S. economic sanctions and U.S. anti-money laundering laws on U.S. as well as non-U.S. banks and financial services companies, and advises clients with respect to compliance and defends clients in enforcement actions. With respect to dispute resolution, Mr. Eren represents clients in court; before tribunals such as those constituted by the World Bank’s ICSID dealing with the arbitration of international investor-state disputes; before the U.S. Treasury, State, and Commerce Departments; U.S. federal banking regulators; the New York State Banking Department; and other state banking regulators, and U.S. federal prosecutors

From 2000 to 2002, Mr. Eren was a lawyer at the Washington office of Clifford Chance, where he advised and represented clients, lawyers of the firm, and the firm itself on economic sanctions and other U.S. financial and international trade regulatory matters. From 1992 to 2000, Mr. Eren served at the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC), the agency of the U.S. Government responsible for administering U.S. economic sanctions. His last position at OFAC was Senior Sanctions Advisor.

During his 7 ½ years at OFAC, by country, Libya, Yugoslavia, Iran, and Cuba; and by subject matter, cases involving international payments/clearing, complex international financial and trade transactions/arrangements, international loan syndications, and large-amount frozen assets comprised the major portion of Mr. Eren’s portfolio at Treasury. Notably, in this regard, Mr. Eren had prime responsibility at OFAC with respect to policy and decisions affecting the apportionment, amongst successor states, of the London Club debt of the former Yugoslavia. At OFAC, he contributed to the formulation and drafting of: Presidential Executive Orders, including those imposing sanctions against Yugoslavia and Iran; UN Resolutions; OFAC regulations, including the Iranian Transactions Regulations; and OFAC guidelines. At OFAC, Mr. Eren also authored legal interpretations, including interpretations involving jurisdiction and third-country trade, and participated in the adjudication of (licensing) cases involving exceptions to sanctions prohibitions and requirements, in interagency deliberations, and in deliberations concerning enforcement cases and the imposition of penalties for sanctions violations.

Mr. Eren has more than 10 years of business and transactional experience gained in a variety of settings that he brings to bear to his practice of law. Prior to joining Treasury in 1992, Mr. Eren served as an executive of a real estate/infrastructure development company, as an executive of a U.S. bank, and in Madrid, Spain, as an executive of an international merchant bank concentrating on projects in Europe and the Middle East.

Mr. Eren holds a J.D. from the American University’s Washington College of Law, and a B.A. in economics, and a B.A. in government and politics from the University of Maryland. He is admitted to the bars of New York, Washington, D.C., and Maryland.


  • Banking & Finance
  • Corporate
  • Economic Sanctions
  • Anti-Money Laundering
  • Litigation & Dispute Resolution


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


  • State Courts of: New York, Maryland, Washington, D.C.
  • Federal:
    • U.S. Supreme Court
    • U.S. District Court for the Southern District of New York (SDNY)
    • U.S. District Court for the District of Columbia (DDC)
    • U.S. Court of International Trade


  • American University, J.D.
  • University of Maryland, B.A. - Economics
  • University of Maryland, B.A. - Government & Politics
  • Harvard University, Executive Education
  • Université de Paris-Sorbonne, non-degree study
  • The Severn (private) School


  • English (native)
  • French
  • Spanish
  • Turkish


  • United Nations Headquarters, Intern
  • Banking & Business (private sector), 1982 - 1992
  • U.S. Treasury Department (OFAC), 1992 - 2000
  • Clifford Chance, LLP, 2000 - 2002
  • The Eren Law Firm, since 2002


  • District of Columbia Bar Association
  • New York State Bar Association
  • Maryland Bar Association
  • American Society of International Law
  • American Bar Association
    • Section of International Law and Practice