Skip to main content

About me

Mark S. Davidson is a Member in the Seattle office, and past Managing Director of Williams Kastner. His practice concentrates on commercial litigation involving business disputes including real estate sales and broker disputes, securities and unfair competition claims. Prior to joining Williams Kastner, Mark was a U.S. Department of Justice attorney specializing in bank fraud investigations. Mark also has experience resolving commercial real estate, business, and securities disputes through arbitration and mediation. He was recognized as a Super Lawyer® for 2001, 2002, 2003 and 2005 by Washington Law & Politics magazine.


Practice areas


  1. Litigation: 40%
  2. Insurance: 30%
  3. Commercial Real Estate: 30%

Attorney endorsements

No endorsements

Endorsements from fellow lawyers are an important consideration for many when selecting the right attorney. Be the first to endorse your colleague!

Are you an attorney? Endorse this lawyer

Contact info

601 Union St Ste 4100
Seattle, WA, 98101-2380


DCActive 199011/29/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV Peer-Review RatedMartindale-Hubbell2008
AV Peer-Review RatedMartindale-Hubbell2007
AV Peer-Review RatedMartindale-Hubbell2006
Super LawyersWashington Law & Politics Magazine2005
AV Peer-Review RatedMartindale-Hubbell2005
AV Peer-Review RatedMartindale-Hubbell2004
Super LawyerWashington Law & Politics Magazine2003
AV Peer-Review RatedMartindale-Hubbell2003
Super LawyerWashington Law & Politics Magazine2002
AV Peer-Review RatedMartindale-Hubbell2002
AV Peer-Review RatedMartindale-Hubbell2001
Super LawyerWashington Law & Politics Magazine2001
AV Peer-Review RatedMartindale-Hubbell2000
AV Peer-Review RatedMartindale-Hubbell1999
AV Peer-Review RatedMartindale-Hubbell1998
AV Peer-Review RatedMartindale-Hubbell1997
AV Peer-Review RatedMartindale-Hubbell1996
AV Peer-Review RatedMartindale-Hubbell1995
AV Peer-Review RatedMartindale-Hubbell1994
AV Peer-Review RatedMartindale-Hubbell1993
AV Peer-Review RatedMartindale-Hubbell1992
AV Peer-Review RatedMartindale-Hubbell1991
Work experience
TitleCompany nameDuration
Member/PartnerWilliams Kastner1985 - Present
AssociateWilliams Kastner1979 - 1984
Association namePosition nameDuration
American Bar AssociationMemberN/A
Alzheimer's Association of Western and Central WashingtonBoard of DirectorsN/A
Business Torts ReporterBoard of EditorsN/A
King County Bar Association, Trial Practice SectionMemberN/A
King County Bar AssociationMemberN/A
Washington State Bar Association, Trial Practice SectionMemberN/A
Washington State Bar AssociationMemberN/A
American Bar Association, Business Torts CommitteeMemberN/A
American Bar Association, Litigation SectionMemberN/A
American Arbitration AssociationArbitration PanelistN/A
Publication nameTitleDate
American Bar Association, Business Torts Journal, Winter 2008 Remedies Issue."Tort Damages for Breach of Contract? The Ebb and Flow of the Economic Loss Rule"2008
Business Torts Journal"Fraud in Charitable Fund-Raising"2004
School nameMajorDegreeGraduated
University of Washington School of LawN/AJD - Juris Doctor1975
Stanford UniversityN/AN/A1971