Haley L. Wasserman is an associate at Williams & Connolly. Her practice focuses on complex commercial and civil litigation, and international arbitration.  Haley has argued and won dispositive motions on behalf of clients in federal court, and taken and defended depositions of key witnesses, including named plaintiffs and experts.  Haley’s arbitration practice focuses on investor-state disputes before ICSID. Haley has worked on matters for sovereign states, Fortune 500 companies, and AmLaw 100 law firms. 

Haley graduated magna cum laude from Northwestern University School of Law, where she competed abroad in the Willem C. Vis International Arbitration Moot Competition and was a finalist in the Appellate Lawyers Association Moot Court Competition. Prior to attending law school, Haley worked as an International Trade Policy Officer for the Government of Alberta in Canada. She graduated from McGill University as the 2012 Bachelor of Arts Class Valedictorian.



Recognized as a “Rising Star” by CPR Institute for Dispute Resolution, 2023


Other Government Service

  • Judicial Extern, U.S. Bankruptcy Court, Northern District of Illinois, 2015
  • Trade Policy Officer, International and Intergovernmental Relations, Government of Alberta, 2013 - 2014
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