Peter Gilbert

Peter Gilbert has carried on the Gilbert family tradition of providing principled legal counsel to those in and around Skagit County. Mr. Gilbert began his career with ardor when he accepted an internship with the Skagit County Public Defender’s office while attending law school. Following his graduation, he worked as a deputy prosecutor for the Skagit County Prosecuting Attorney’s office from 1999 to 2001.

After his years as a prosecutor, Mr. Gilbert established his own practice, The Law Office of Peter Gilbert. For two years, he provided criminal defense services exclusively before joining his family’s longstanding firm Gilbert & Gilbert Lawyers, founded by his grandfather in 1921. He worked alongside his brother, Warren M. Gilbert and his father, Warren J. Gilbert, Jr. for about five years until his father’s retirement in 2007. At the same time, his brother Warren M. Gilbert was elected as a Skagit County District Court judge. Peter manned the family firm as a sole practitioner until 2011 when his sister, Jayne Gilbert, rejoined him.

Outside of the firm, Pete Gilbert is an avid skier and golfer. In his young adulthood, he was an Eagle Scout and also interned for former Senator Brock Adams in Washington D.C.


  • University of Washington, Seattle, WA – B.A. in Finance, 1993
  • Willamette Law School, Salem, OR – J.D., 1998

Admissions & Memberships

  • The Washington State Bar Association
  • Freemasons of Washington

Jayne Marsh Gilbert

Attorney Jayne Marsh Gilbert also holds the torch in the Gilbert family tradition of working in the legal industry. She attended the University of Washington Law School and participated in both Law Revue and Moot Court while there. During her time at UW, Ms. Gilbert revived the legal fraternity Phi Delta Phi and formed several co-ed and women’s competitive intramural teams for softball and volleyball, winning state titles in both.

Following her graduation, Jayne moved to Alaska where she worked for the U.S. District Court of Alaska in appellate court and insurance defense. In 1991, she moved to California and passed the state bar, residing there until 1995 when she moved back to Washington to work with her brother and father. Jayne then moved to Savary Island, British Columbia for several years until returning to Mount Vernon again in 2011 to work with her other brother, Pete, at Gilbert & Gilbert Lawyers. Ms. Gilbert practices guardianshipsprobate, and estate planning law including trusts and wills. She has also participated in speaking engagements related to ethics in probate.

When she isn’t practicing law, Jayne can be found spending time with her children and grandchildren.


  • University of Washington Law School, Seattle, WA – J.D., 1989
  • University of Washington, Seattle, WA – History, 1986

Admission & Memberships

  • Washington State Bar Association
  • California State Bar Association
  • Skagit County Bar Association
  • Member of the WSBA Family Law, Real Property, Probate and Trust, Solo, and Small Firm Sections
  • Member of the Northwest Washington Estate Planning Council

Gilbert & Gilbert Lawyers has been serving the legal needs of Mount Vernon and Skagit County since 1921. If you need assistance in the areas of criminal defense, personal injury or estate planning, we’re here to help. Call our office today at (360) 336-9515 to get started.

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