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 a torch in the Gilbert family tradition of working in the legal industry. She graduated from the University of Washington with a Bachelor’s Degree in 1986 and then graduated from the University of Washington School in 1989, making her the third generation of the Gilbert family to Graduate from the UW Law School behind her grandfather, Warren J. Gilbert, Sr. who started the Gilbert Law Firm in 1921 and her father, Warren J. Gilbert, Jr. who joined the firm in 1954.

Following her graduation in 1989, Jayne took the Alaska Bar and worked in Juneau, Alaska for one of the larger law firms in Alaska. In 1991, she moved to Los Angeles, California and passed their state bar, residing there until she returned to Skagit County passing her third bar in 1995 and began working with her brother, Warren M. Gilbert and her father, Warren J. Gilbert at Gilbert & Gilbert Lawyers.

In 2001 Jayne moved to Savary Island, British Columbia, a tiny little island just south of Desolation Sound, until returning to Mount Vernon in the Fall of 2007. Ms. Gilbert began working with one of her other brothers, Peter Gilbert, at Gilbert & Gilbert Lawyers in 2010. Ms. Gilbert’s primary practice areas are probate and estate planning including the creation and interpretation of trusts and wills.


  • 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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