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Jeffrey C. Warren

Jeffrey C. Warren

Co-Managing Partner

Companies rely upon Jeff Warren to manage and try cases across the country. As part of his product liability practice, Jeff regularly tries high-profile, multi-million dollar personal injury lawsuits. In 2013 alone, Jeff tried three multi-million dollar cases to verdict in three different states, and has tried cases for numerous product manufacturers during his career. 

In addition to his trial work, Jeff also has significant experience managing complex litigation, including class actions, MDLs and mass tort litigation. He also advises product manufacturers on potential regulatory and litigation issues.

Jeff has gained reputable recognition for his work on high-profile trials. Jeff represented a seatbelt buckle manufacturer in Rezzonico v. Indiana Mills and Manufacturing, Inc., a multi-million dollar catastrophic injury case which made the "Top 10 Civil Verdict of 2014" list in Arizona Attorney Magazine. His defense of Ford Motor Company in Myers v. Ford earned him the same recognition in 2008. Similarly, Jeff was part of the trial team that represented Yamaha Motor Company in the Yamaha Rhino bellwether trial of Holt v. Yamaha that the California Daily Journal identified as one of the "Top Verdicts of 2010." In addition to his automotive practice, he has handled numerous commercial cases involving contract disputes and other business tort matters.

Jeff is frequently asked to speak about product liability law, and has been invited to give speeches at the Defense Research Institute Product Liability Group Annual Conference and the American Bar Association Tort Trial and Insurance Practice's Motor Vehicle Seminar. Jeff is also the lead author concerning Arizona product liability law in DRI Product Liability Defenses, a State-by-State Compendium.

Bar Admissions

  • Arizona

Court Admissions

  • U.S. Court of Appeals, Ninth Circuit
  • U.S. District Court, District of Arizona
  • U.S. District Court, Western District of Michigan, 2015


  • University of Chicago Law School, J.D., 2001
  • Northwestern University, B.A., Bachelor of Arts, 1998


Professional Associations

    • International Association of Defense Counsel
    • Arizona Association of Defense Counsel
      —Board Member, 2015 – 2019
    • —Pro Bono Committee, Co-Chair, 2015 – 2017
      —Amicus Committee, Co-Chair, 2018 – 2019
    • Defense Research Institute
      —Trial Techniques & Technologies, Marketing Chair, 2018
    • State Bar of Arizona
    • American Bar Association
    • Maricopa County Bar Association



    • Legal Leaders Magazine
      —Arizona's Top Rated Lawyers of 2014
    • Super Lawyers Magazine
      —Southwest Rising Stars, 2012 – 2015
    • Martindale-Hubbell
      —Rated AV Preeminent
    • California Daily Journal
      —Top Verdicts of 2010
    • Arizona Attorney Magazine
      —Top 10 Civil Verdicts, 2008 and 2014

Recent News, Events and Blogs

Speaking Engagements

  • “AZ Update on Product Liability Law,” Co-Presenter, ACC Arizona CLE Luncheon, July 2019
  • "Managing Risk with Your Accessories and After-Market Add-Ons," Client Presentation, November 2015
  • "Handling Products Liability Trials Involving Off-Road Vehicles, Motorcycles and Personal Watercraft," Emerging Issues in Motor Vehicle Product Liability Seminar, American Bar Association TIPS, April 2014
  • "Handling Products Liability Trials Involving Off-Road Vehicles and Motorcycles," Emerging Issues in Motor Vehicle Product Liability Litigation, American Bar Association TIPS, April 2013
  • "Developments in Trying Side Curtain and Glazing Cases," Emerging Issues in Motor Vehicle Product Liability Litigation, American Bar Association TIPS, April 2013
  • "Twenty-First Century Pattern Products Litigation-Litigation at the Speed of the Internet," DRI Annual Meeting, New Orleans, LA, October 2012


  • "Bowman and Brooke Phoenix Attorneys Defend Imperiled Offer of Judgment Rule," Co-Author, Legal Alert, May 2019
  • "Arizona Supreme Court Re-Affirms Comparative Fault for Successive Tortfeasors," Client Alert, Co-Author, July 2016
  • DRI Product Liability Defenses: State-by-State Compendium – Co-author of the Arizona product liability section