Kathleen M. "Katie" O'Sullivan

Kathleen M. "Katie" O'Sullivan


Perkins Coie LLP

Recognized since 2009

Seattle, Washington

Practice Areas

Appellate Practice

Bet-the-Company Litigation

Commercial Litigation

Commercial Litigation

Lawyer of the Year Badge - 2016 - Appellate Practice
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Location

  • 1201 Third Avenue, Suite 4900
    Seattle, WA 98101-3099

Education

  • Yale University , BA

Bar Admissions

  • Washington, Washington State Bar Association

Affiliations

  • American Law Institute - Member
  • Federal Bar Association - Member
  • Washington State Bar Association - Member

Federal Clerkships

  • United States Court of Appeals
  • United States District Court

Perkins Coie LLP
Headquarters: Seattle, Washington

278 The Best Lawyers in America® awards

220 Best Lawyers: Ones to Watch in America awards

Best Law Firms Badge Full Firm Profile

Lawyer of the Year Badge - 2016 - Appellate Practice

Named "Lawyer of the Year" by Best Lawyers® for:

  • Appellate Practice, Seattle (2016)

Recognized in The Best Lawyers in America® 2023 for work in:

  • Bet-the-Company Litigation
  • Commercial Litigation
  • Appellate Practice
  • Commercial Litigation

Special Focus

  • Appellate
  • Civil Litigation
  • Class Actions
  • Complex Litigation

Awards:

  • Co-Recipient of awards for IOLTA Supreme Court litigation (American Bar Association, Washington State Bar Association, King County Bar Association, Perkins Coie)
  • Listed in Washington Law & Politics, “Washington's Super Lawyers," 2007 - Present

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