Skip to content Merton E. Marks


Two N. Central Avenue
Suite 2200
Phoenix, AZ 85004


J.D., Northwestern University Pritzker School of Law

  • Northwestern Law Review, Contributing Author

Pepperdine University School of Law, Straus Institute for Dispute Resolution

B.S., Political Science and Economics, Northwestern University College of Arts and Sciences


Member, American Board of Trial Advocates (ABOTA)

Guest Lecturer, International Arbitration, Georgetown University Law Center

"Best of Arizona Business Attorneys," Arizona Business Magazine

AV Preeminent Rating, Martindale Hubbell®

Former Judge Pro Tem, Arizona Court of Appeals


Merton E. Marks is Of Counsel in the Phoenix office of GRSM. His practice is focused on arbitration and litigation in the following areas:


  • Financial Industry Regulatory Authority (FINRA) arbitrations involving brokers, registered representatives, customer claims, expungement of prior actions
  • Former Assistant Attorney General of Arizona, Securities Division

Hospitality Industry 

  • Claims against hotels, resorts, golf courses, guest security, Dram Shop litigation

Insurance and Reinsurance

  • Coverage, premium fraud, audit and rate disputes
  • Bad faith claims
  • Agent, broker, and third party claims administrator liability
  • Arizona Insurance Department regulatory and rate proceedings
  • Arizona Industrial Commission self-insurance and regulatory proceedings, workers’ compensation, employers’ liability, and asbestos cases

Military Law and Practice

  • Judge Advocate General's Corps (XV Army Corps), Former Captain, U.S. Army
  • Counsel in more than 60 Courts Martial, administrative hearings, and appeals
  • Awarded Army Commendation Medal for meritorious service
  • Admitted to practice before the U.S. Court of Appeals for the Armed Forces
  • Life Member, Military Officers Association of America
  • Member, Judge Advocates Association
  • Member, Wounded Warrior Project

Product Liability

  • Pharmaceutical drugs, medical and dental devices, and equipment, herbal supplements, cosmetics
  • Children’s products
  • Industrial machinery, chemicals, gases, plastics, asbestos
  • Firearms


  • Arizona
  • Illinois (Inactive)
  • U.S. District Court, Arizona
  • U.S. Court of Appeals, Ninth Circuit
  • U.S. Supreme Court


  • American Board of Trial Advocates (ABOTA)
  • International Association of Defense Counsel
  • Arizona Association of Defense Counsel, Past President
  • American Bar Association, Special Committee on Federal Asbestos Legislation, Former Chair


Publications & Presentations