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Sean E.M Moore

Phone: 206 628-6786
Fax: (206) 628-6611
Email: smoore@williamskastner.com

Two Union Square
601 Union Street, Suite 4100
Seattle, WA 98101

Sean Moore is of counsel in the Seattle office of Williams Kastner. His practice focuses on labor and employment law, and product and premises liability. Mr. Moore advises and represents National Association of Independent Schools (NAIS) member institutions and public school districts in all manner of labor-related claims, as well as harassment, intimidation, and bullying actions. He is a member of the Council for School Attorneys, and is “AV Preeminent” peer-review rated by Martindale-Hubbell.

Mr. Moore also has experience defending private corporations, municipalities, and state agencies in suits arising from environmental and industrial catastrophes such as the Taylor Bridge fire and the Olympic Pipeline explosion, in addition to having defended hospitality and healthcare entities in E. coli and latex allergen cases respectively. He serves as a third-party neutral, and has arbitrated numerous disputes through the King County MAR program.

Mr. Moore is licensed to practice in Washington, Oregon, U.S. District Court (Western Washington, Eastern Washington), the United States Court of Appeals for the Ninth Circuit, and the United States Supreme Court. Trial victories include defense verdicts in Martini v. State of Washington, Raunig v. The Golf Club at Newcastle, and most recently, Higgins v. Lakeside School.

Professional Experience

  • Present Williams Kastner, Of Counsel | 2016
  • Floyd, Pflueger & Ringer, Partner | 2001 – 2016


  • National Lawyers Guild
  • Council of School Attorneys


Presenter, “New Seattle Ordinances & Enforcement Initiatives: Hotel Worker Safety, Secure Scheduling, and Unionization of On Demand Drivers,” Williams Kastner Labor & Employment Seminar, Seattle, WA, November 1, 2017.

Areas of Practice
Bar Admissions
  • Washington
  • Oregon
  • U.S. District Court (Western Washington, Eastern Washington)
  • United States Court of Appeals for the Ninth Circuit
  • United States Supreme Court
  • University of New Mexico School of Law, Albuquerque, NM, J.D.,2000
  • University of New Mexico, Albuquerque, NM, B.A., Biology, 1996 magna cum laude