ALI Council
Elected Member

Kathleen M. O'Sullivan

Seattle, WA
Perkins Coie LLP
Yale University
Georgetown University Law Center

Katie O’Sullivan is a partner and firmwide chair of the Executive Committee at Perkins Coie LLP in Seattle, where she represents clients in a wide range of complex litigation in trial and appellate courts across the country. Ms. O’Sullivan is the former Chair of the Washington Commission on Judicial Conduct. She has been active in the Washington State Bar Association and the Federal Bar Associations.

After receiving her law degree from Georgetown University Law Center in 1996, she was a law clerk for Judge Harold Greene on the U.S. District Court for the District of Columbia, and Judge M. Margaret McKeown on the U.S. Court of Appeals for the Ninth Circuit.

 Kathleen M. O'Sullivan Image
Areas of Expertise
Appellate Litigation (Litigation)
Commercial Law
Class Actions (Complex Litigation)
Constitutional Law