Haley L. Wasserman focuses her practice on international litigation and arbitration. Haley has represented companies and sovereign states in disputes before a variety of courts and arbitral institutions, and spanning a broad array of subject matters, including energy, telecommunications, media, medical devices, and infrastructure projects.  Haley has successfully argued dispositive motions, taken and defended dozens of depositions, and presented opening arguments and examined witnesses at hearings.

Haley was recognized as a “Rising Star” by the International Institute for Conflict Prevention and Resolution (“CPR”) in 2023. The Legal 500 named her a “Rising Star” in 2023 and 2024, and a “Leading Associate” in International Litigation in 2025.

Outside the firm, Haley teaches a seminar on Advocacy in International Arbitration at Yale Law School, and coaches Yale Law School’s Vis Moot Team. Haley is a member of CPR’s Steering Committee for Young Leaders in Alternative Dispute Resolution. She also serves as an arbitrator for the D.C. Bar Attorney-Client Arbitration Board, and a mediator for the District of Columbia Superior Court. 

Haley graduated magna cum laude from Northwestern University School of Law. Before law school, Haley worked as an International Trade Policy Officer for the Government of Alberta in Canada. She graduated from McGill University as Class Valedictorian.