W.M. Charles ThomsonShareholder


Chuck has substantial experience with commercial disputes involving contracts or business torts, the defense of professional negligence claims, and environmental litigation in both state and federal courts. Having handled civil litigation matters in Phoenix and throughout Arizona for more than 45 years, Chuck has experience in commercial and business disputes of all types, including breach of contract and fiduciary duties, fraud and misrepresentation, civil RICO, and securities litigation.

W.M. Charles Thomson

He has defended numerous professional liability claims for physicians, attorneys and architects. In recent years, Chuck has focused his practice on representing plaintiffs in personal injury and wrongful death claims and in pursuing tort and contract damages on behalf of individuals against corporations and other business entities. More recently, he has begun the transition to strategic case planning and consulting. See Chuck’s profile on our main website.

Honors & Awards

  • AV® Preeminent™ Peer Review Rating, Martindale-Hubbell
  • Best Lawyers in America®, Bet-the-Company Litigation, 2025; Commercial Litigation, 2013-2025
  • Top 50 Pro Bono Attorneys in Arizona, 2014
  • Arizona Finest Lawyers, Sustaining Member, 2014-2019

Press Releases

Bar & Court Admissions

  • Arizona, 1975
  • U.S. District Court, District of Arizona, 1975
  • U.S. Court of Appeals, Ninth Circuit, 1976

Associations & Memberships

  • State Bar of Arizona, Member
  • Supreme Court of Arizona, Attorney Ethics Advisory Committee, (2019-2021)
  • State Bar of Arizona, Professionalism Committee (2012-2018); Chair (2017-2018)
  • Arizona Association of Defense Counsel, Member (1975-2009); Past President (1987)
  • Arizona Foundation for Legal Services & Education, Sustaining Patron
  • Maricopa County Bar Foundation, Charter Benefactor and Past Chair