Biography
Mark draws on 15 years with the federal government shaping U.S. labor policy, including at the White House and the National Labor Relations Board (NLRB), to provide employers with practical advice on domestic and international labor law compliance.
Mark provides clients with solutions-oriented guidance on collective bargaining administration, labor arbitrations and issues arising under the National Labor Relations Act (NLRA). He also advises employers on day-to-day personnel matters, including internal investigations, discrimination and harassment allegations, and reasonable accommodations for disabilities. Mark provides counsel and training to business owners in the staffing industry, including with respect to labor unions and joint employer liability.
In addition, Mark is a member of the firm's International Trade Practice Group. He represents clients in matters related to the Office of the U.S. Trade Representative (USTR), the International Labor Organization (ILO), the Uyghur Forced Labor Prevention Act (UFLPA), supply chain due diligence and other customs and trade issues. He has deep experience with freedom of association and collective bargaining matters arising under the United States-Mexico-Canada Agreement (USMCA) Rapid Response Labor Mechanism (RRM), and with other issues at the intersection of international trade and labor law.
Mark hosts the firm’s Labor Law Lineup podcast, which provides Human Resources professionals with practical guidance on collective bargaining and labor law issues.
Before Fox Rothschild
Prior to joining Fox, Mark served as Associate General Counsel at USTR, where he represented the United States in RRM and other labor-related matters arising under trade agreements.
From 2022-23, Mark served as Director for International Economics in the White House, holding a joint appointment to the National Security Council (NSC) and the National Economic Council (NEC). In that capacity, he developed U.S. policy on labor, trade, and supply chain issues, and served as the NSC principal and representative on the U.S. government’s Forced Labor Enforcement Task Force (FLETF).
In 2024, President Biden nominated Mark to serve as a Commissioner on the Occupational Safety and Health Review Commission. The Senate Committee on Health, Education, Labor, and Pensions approved his nomination on a strongly bipartisan vote, although the nomination was returned without a Senate vote.
Earlier in his career, Mark spent more than 10 years with the National Labor Relations Board, where his work spanned investigations, litigation, rulemaking and the drafting of adjudicatory decisions. Additionally, Mark served as a neutral mediator with the Board’s Alternative Dispute Resolution (ADR) Program, where he helped companies and unions resolve unfair labor practice disputes. He has also practiced in the labor and employment groups of two global law firms.
Bar Admissions
- District of Columbia
- New York
- Virginia
Court Admissions
- U.S. Supreme Court
Education
- Georgetown University Law Center (J.D., cum laude, 2008)
- Cornell University (B.S., 2005)

