William Simpson 

Associate – Washington
T.+1 202 862 2214
700 Sixth Street, N.W.
Washington, DC 20001 V-CARD

William Simpson is an associate in the firm’s White Collar Defense and Investigations Group. William’s practice encompasses commercial disputes, securities litigation, appellate litigation, administrative law and bankruptcy-related litigation. He represents clients in state and federal courts, as well as in federal administrative enforcement actions. His experience ranges from conducting domestic and international discovery to motions practice to supporting appellate litigation in federal courts. In those roles, William has advised a variety of clients, including financial services firms, investment funds, monoline insurers, large corporations and individual executives.

William received a J.D. from Boston University School of Law, where he was the Executive Articles Editor for the Review of Banking & Financial Law, a legal intern for a state attorney general’s office, and a Symposium Editor for the Harvard Journal of Law & Public Policy. Before law school, William earned a B.S.B.A., cum laude, in Economics and Finance from the University of Arkansas, and worked for several nonprofit and public policy organizations.



  • Comment, The Greek Default and Subsequent Bailout Deal, 35 Rev. Banking & Fin. L. 10 (2015)
  • Note, Above Reproach: How the Consumer Financial Protection Bureau Escapes Constitutional Checks and Balances, 36 Rev. Banking & Fin. L. 343 (2016)
  • Comment, Exit Rights, Pluralism, and Equal Citizenship: Why Religious Exemptions are Still Worth It, 2 J.L. & Pub. Aff. 278 (2017)
  • Co-author, Appraisal Litigation Update, Harv. L. Sch. F. On Corp. Governance and Fin. Reg. (Dec. 27, 2017)
William Simpson 


  • U.S. Court of Appeals, 2nd Circuit
  • U.S. Court of Appeals, 5th Circuit
  • U.S. District Court, Southern District of New York
  • District of Columbia Bar application submitted. Not admitted to D.C. Practicing under the supervision of licensed D.C. Bar members.
  • New York


  • Boston University School of Law
  • University of Arkansas
    B.S.B.A., cum laude



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