Founding Partner, Washington DC

Hal Eren has over twenty eight years of full-time experience in the field of corporate law and economic/financial sanctions.


Hal Eren is the founding partner of the firm and the lead attorney in the Eren Law Firm's widely respected corporate and economic sanctions practice. He has advised on many transactions, successfully resolved many sanctions disputes, settled enforcement actions, and obtained licenses and interpretations that are favorable to his clients. He possesses a unique wealth of knowledge and experience which he brings to each case he works on. With a practical and detail-oriented approach, Mr. Eren provides clients with unparalleled legal guidance and advice, always drawing on the unique attributes of each client and their 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. Due to his eight years at the U.S. Treasury, Mr. Eren has expertise in handling U.S. economic sanctions and U.S. anti-money laundering laws imposed on U.S. and non-U.S. banks, financial services companies, marine insurers, and ship owners. He advises clients on compliance, defends clients in enforcement actions, and manages dispute resolution. Mr. Eren represents clients in court and before the following entities: tribunals dealing with the arbitration of international investor-state disputes such as the World Bank's ICSID; the U.S. Treasury, State, Justice, and Commerce Departments; U.S. federal banking regulators; the New York State Department of Financial Services 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. When he left OFAC, Mr. Eren held the title of Senior Sanctions Advisor.

Mr. Eren's portfolio at the OFAC varied by country and subject matter. The countries he worked on included Libya, Yugoslavia, Iran, and Cuba. His relevant subjects were cases involving international payments and clearing, complex international financial and trade transactions or arrangements, international loan syndications, and large-amount frozen assets. Notably, Mr. Eren had primary responsibility over policy and decisions affecting the former Yugoslavia's successor states' apportionment of the London Club debt. At OFAC, he contributed to the formulation and drafting of several orders, regulations, and guidelines. He helped draft Presidential Executive Orders—including those imposing sanctions against Yugoslavia and Iran—UN Resolutions, OFAC regulations such as the Iranian Transactions Regulations, and OFAC guidelines. At OFAC, Mr. Eren also authored legal interpretations involving jurisdiction and third-country trade. He also participated in the adjudication of cases on exceptions to sanctions prohibitions and requirements exemptions and exceptions to sanctions prohibitions and requirements. Mr. Eren took part in interagency deliberations and negotiations concerning enforcement cases and the imposition of civil 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 his practice of law. Prior to joining Treasury in 1992, Mr. Eren served as an executive of a real estate and infrastructure development company, as an executive of a U.S. bank, and in Madrid, Spain, as an executive of an international merchant bank focusing on significant projects in Europe and the Middle East.

Mr. Eren holds a J.D. from the American University's Washington College of Law. He received one B.A. in economics and another 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

How We Can Help

The Eren Firm, we focus on Trade Regulations and International Business and we are here to listen to you and help you navigate the legal system.

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