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Arissa M. Peterson

Phone: 206-233-2984
Fax: 206-628-6611
Email: apeterson@williamskastner.com

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


Arissa Peterson is a senior associate in the Seattle office. She works on a variety of litigation matters representing clients in state and federal trial courts in Washington. Arissa’s practice is presently focused on the defense of product liability and medical negligence claims, and Ms. Peterson has successfully defended national corporations, local businesses, government entities, school districts and individuals in numerous complex cases. She has served on the National Coordinating Counsel teams for toxic tort litigation involving asbestos claims, and she previously served on the multidistrict litigation (MDL) No. 1407 defense liaison counsel team from which over 5,000 plaintiffs claimed personal injuries as a result of taking prescription and over-the-counter cough and cold medications and appetite suppressants containing phenylpropanolamine (PPA). Arissa serves as local counsel for numerous MDL, mass tort and other complex matters involving asbestos, pharmaceuticals, medical devices, and other products. She has been named to Rising Stars for 2010 - 2013 by Super Lawyers magazine.

Memberships and Affiliations:

Ms. Peterson is a member of the Washington State Bar Association, King County Bar Association, Washington Women Lawyers, Washington Defense Trial Lawyers, Defense Research Institute, and MAMAS (Mother Attorneys Mentoring Association of Seattle).

Recent Presentations:

  • "Medical Records Law in Washington," Lorman Education Services, Tacoma, WA, February 16, 2012.
  • "Medical Records Law in Washington," Sterling Education Services, Tacoma, WA, June 11, 2010.
  • "Hearsay," Rules of Evidence in Washington, Lorman Education Services, Seattle, WA, April 14, 2009.
  • "Patient Termination: Why, When, and How to End the Patient-Physician Relationship," 2009 Legal Update, Providence St. Peter Hospital, Olympia, WA, February 11, 2009.
  • "Paperless Law Office," Practicing Law in the Electronic Era, Washington State Bar Association, Seattle, WA, February 6, 2009.
  • “Handling Electronic Records & Files,” Electronic Law Office Practice, Half Moon Seminars, October 23, 2008.
  • Internet Research for Paralegals, Lorman Education, Presenter and Moderator, January 24, 2008.
  • “Responding to Subpoenas, Court Orders & Law Enforcement,” Medical Records Law, Lorman Education, Seattle, WA, June 22, 2007.

Select Articles and Publications:

Board and Pro Bono Involvement:

  • Washington State Bar Association Committe Member (Editorial Advisory Committee, 2010-2012; Committee for Diversity, 2010-2012)
  • YWCA Women's Inspire Luncheon (Table Captain, 2010-2012; Luncheon Committee Volunteer, 2010-2012)
  • Community Advisory Board, Dress for Success Seattle (Chair, 2009)
  • Community Advisory Board, Dress for Success Seattle (Member, 2006-2011)
  • Northwest Immigrant Rights Project (Pro Bono attorney)
Areas of Practice
Bar Admissions
  • Washington
  • U.S. District Court (Western Washington, Eastern Washington)
  • U.S. Court of Appeals (Ninth Circuit)
  • University of Oregon School of Law (JD) 2001
  • University of Washington (BA) 1995