701 Fifth Avenue
Suite 2100
Seattle, WA 98104


J.D., St. John’s University School of Law, 2002

  • Dean’s List
  • Executive Articles Editor, Journal of Legal Commentary

B.A., Psychology, George Washington University, 1999

  • Dean’s List
  • Golden Key National Honor Society
  • Psi Chi Psychology Honor Society
  • Women’s Rugby Team


  • French
  • Farsi (Persian)

Petra N. Ambrose is Senior Counsel in the Seattle office and originally from Washington, D.C. She is a seasoned litigator with experience in numerous areas. Her practice is currently focused on malpractice and professional liability suits against directors and officers, medical professionals, accountants, attorneys, and construction design professionals. She currently serves as the Chair of the Professional Liability Underwriting Society’s Northwest Chapter. Ms. Ambrose prides herself on using creative strategies to obtain favorable results for clients, including dismissals. Ms. Ambrose recently obtained summary judgment dismissal of all claims against a homeowners’ association in relation to alleged breach of fiduciary duty, dismissals of four directors and officers, as well as an accounting firm. She has also successfully obtained permanent injunctions on behalf of two clients.

Ms. Ambrose also has over a decade of experience representing general contractors in personal injury and construction-defect related litigation. Her other practice areas include personal injury, premises liability, commercial litigation, and insurance bad faith. She has extensive experience litigating, mediating, and settling cases in both state and federal courts in Nevada and Washington, and has obtained numerous successful results, including dismissals. Her experience in numerous practice areas has given her unmatched insight into defending her clients.

Ms. Ambrose served as Executive Articles Editor on the St. John’s Journal of Legal Commentary. She served as judicial law clerk to the Honorable Patrick J. Roma, New Jersey Superior Court Judge, as well as a Nevada Supreme Court appointed mediator for the State of Nevada’s Foreclosure Mediation Program.

After practicing primarily in Las Vegas, Nevada, Ms. Ambrose moved to Seattle and began practicing in Washington in early 2015. She is licensed to practice in Washington, Nevada, New Jersey, and the District of Columbia.


New Jersey
District of Columbia
U.S. District Court, Western District of Washington
U.S. District Court, District of Nevada


American Bar Association (Forum on Construction Law)
Iranian American Bar Association