Overview
Martin Willner focuses his practice on international regulatory compliance issues, with a concentration on sanctions and export controls. He advises clients on US sanctions law and policy and regulations administered by the Office of Foreign Assets Control (OFAC) and assists his clients with license applications and disclosures related to US export controls under the Export Administration Regulations (EAR) and International Traffic in Arms Regulations (ITAR). Martin also advises on issues of public international law.
Martin has represented clients in a number of industries, including aerospace and defense, agriculture, financial services, and metals and mining. He focuses on issues related to Russia, China, Venezuela, Iran, Syria, and North Korea.
Prior to joining Steptoe, Martin worked and interned in a number of US agencies and international organizations including the US Department of Justice's Office of Foreign Litigation, the State Department's Office of Counter Threat Finance and Sanctions, the International Court of Justice, and the United Nations Human Rights Committee. In these positions he has worked on issues related to the Kimberley Process Certification Scheme, the Hague Evidence and Service Conventions, treaty interpretation, and diplomatic and sovereign immunity.
- District of Columbia
- New York
- H.E. Joan Donoghue, International Court of Justice, 2018-2019
- Hon. Edwin Cameron, Constitutional Court of South Africa, 2017-2018
- J.D., Columbia Law School, 2017, James Kent Scholar; Harlan Fiske Stone Scholar; Head Notes Editor, Columbia Journal of Transnational Law
- B.A., Columbia University, Columbia College, 2012, cum laude
News & Publications
International Compliance Blog
Trump Imposes Novel “Secondary Tariffs” on Countries Importing Venezuelan Oil and Petroleum Products
March 31, 2025
By: Steptoe's Economic Sanctions Practice
International Compliance Blog
Treasury Department Delists Tornado Cash Following the Fifth Circuit’s Decision
March 25, 2025
By: Steptoe's Economic Sanctions and Blockchain and Cryptocurrency Practices
International Compliance Blog
New US Interagency Guidance Targets Iranian UAVs and Compliance Risks
June 14, 2023
International Compliance Blog
March 1, 2023
By: Jack R. Hayes, Alexandra Baj, Edward J. Krauland, David M. Stetson, Brian J. Fleming, Ali Burney, Meredith Rathbone, Wendy Wysong, Martin Willner
International Compliance Blog
BIS Issues Expansive New Rules Targeting China
October 17, 2022
By: Brian J. Fleming, Meredith Rathbone, Edward J. Krauland, Ali Burney, Alexandra Baj, Wendy Wysong, Jack R. Hayes, Bo Yue, Martin Willner, Ryan Pereira, Evan T. Abrams
International Compliance Blog
September 30, 2022
By: Martin Willner, Jack R. Hayes, Wendy Wysong, Edward J. Krauland, Brian J. Fleming
Resources
Client Alerts
Sanctions Under the Biden Administration: A Return to 'Smart?'
November 24, 2020
By: Edward J. Krauland, Meredith Rathbone, Wendy Wysong, Jack R. Hayes, Evan T. Abrams, Martin Willner, Jordan Cannon (Law Clerk)
Client Alerts
Assessing the Impacts of Executive Order 13936 on Hong Kong's Status, One Month Later
August 25, 2020
By: Alexandra Baj, Ali Burney, Eric C. Emerson, Edward J. Krauland, Michelle L. Levin, Patrick F. Linehan, Meredith Rathbone, Wendy Wysong, Martin Willner, Jacob Nelson (International Trade Assistant)
Client Alerts
CFIUS Proposes Dramatic Expansion of US Foreign Investment Review, Seeks Public Input
October 2, 2019