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Practice areas


  1. Divorce: 60%
  2. Mediation: 30%
  3. Prenuptials: 5%
  4. Adoption: 5%



Hourly ($280/hour)

Payment types:

Cash, Check, Credit card

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Alexis Squier

    Gwen is a thoughtful, sensible, and persuasive advocate for her clients in cooperative cases. She is hard-working and committed to keeping her client's interests in sight, but not without empathy for the other. She operates with the highest level of professionalism and is a pleasure to work with toward sustainable resolutions for our clients.


    Alexis Squier Family Attorney
    Relationship: Opposing Counsel on matter

  • J. Mark Weiss

    Gwen is an intelligent and talented Collaborative Law attorney. She is committed to helping her clients reach positive and durable agreements in their cases. I highly recommend Gwen.


    J. Weiss Divorce and separation Attorney
    Relationship: Opposing Counsel on matter

Contact info

Gwen C. Mathewson, Attorney at Law

2601 Fourth Avenue, Suite 470
Seattle, WA, 98121


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
OwnerGwen C. Mathewson, Attorney at Law2007 - Present
AttorneyRimson Law Offices2004 - 2006
LecturerUniversity of Washington School of Law1997 - 1999
Association namePosition nameDuration
Academy of Professional Family MediatorsMember2012 - Present
King County Collaborative LawMember2007 - Present
International Academy of Collaborative ProfessionalsMember2007 - Present
Collaborative Professionals of WashingtonMember2007 - Present
Washington State Bar AssociationMember2005 - Present
School nameMajorDegreeGraduated
University of WashingtonEnglishPh.D. Candidacy1996
University of WashingtonEnglishM.A.1993
University of Chicago Law SchoolLawJD - Juris Doctor1990
Yale UniversityLiteratureBA - Bachelor of Arts1986
Speaking engagements
Conference nameTitleDate
Academy of Professional Family Mediators"Partnering with Technology for Cost-Effective Case Completion"2014
Academy of Professional Family Mediators"Mediator as Educator"2014
International Academy of Collaborative Professionals"Adaptability and Scalability of the Collaborative Process"2010
WSBA Family Law CLE"Pleadings / Filings / Case Management"2009