Duane W. Grummer

Duane W. Grummer

Founding Partner
San Francisco, California

Mr. Grummer is one of the firm's three founding partners. 

Since 1980, he has been a Board Certified Civil Trial Advocate, specializing in Civil Litigation.  He is a member of the Torts and Insurance Practice Section of the American Bar Association, the Defense Research Institute, the Association of Defense Trial Attorneys, and the Association of Defense Counsel of Northern California.

Mr. Grummer practiced as a civil engineer for five years and is a licensed civil engineer in the State of Missouri.  While employed as a professional engineer, he drafted contracts, specifications, and conducted field observations on high-profile construction sites.  He specializes in all aspects of Construction Litigation, including contracts, construction defects, technical products liability, and defense of design professionals.  He has extensive experience defending toxic tort cases, including asbestos litigation.

Mr. Grummer is a participant in educational programs on a variety of topics sponsored by legal and construction organizations and he regularly presents Moot Court demonstrations.

A native of Iowa, Mr. Grummer obtained his B.S. in Civil Engineering in 1968 from Iowa State University.  He earned his J.D. in 1973 at the University of  Missouri School of Law. 

Mr. Grummer is licensed to practice in the states of California and Missouri.

Areas of Practice

  • Construction Law & Litigation

Certified Legal Specialties

  • Board Certified Civil Trial Advocate specializing in Civil Litigation

Bar Admissions

  • California
  • Missouri


  • University of Missouri Columbia School of Law, Columbia, Missouri
    • J.D. - 1973
  • Iowa State University, Iowa
    • B.S. - 1968
    • Major: Civil Engineering

Professional Associations and Memberships

  • American Bar Association, Torts and Insurance Practice Section, Member
  • Defense Research Institute, Member
  • Association of Defense Trial Attorneys, Member
  • Association of Defense Counsel of Northern California, Member