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Jeffrey C. Warren

Jeffrey C. Warren

Managing Partner

Jeff Warren is an experienced trial lawyer who has tried numerous, high-exposure cases across the country for a number of corporations.  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’s extensive experience includes representing consumer product manufacturers, automotive manufacturers, off-road vehicle manufacturers, heavy equipment manufacturers, and automotive industry suppliers. He has represented these clients across a broad spectrum of issues, including: alleged product failures; claims of design and manufacturing defects; fires and explosions; warnings, instructions and other human factor issues; and toxic torts, including mold and asbestos.  

Jeff has gained reputable recognition for his work in obtaining defense verdicts in high-profile trials. Jeff represented a seatbelt buckle manufacturer in Rezzonico v. Indiana Mills and Manufacturing, Inc., a multimillion dollar catastrophic injury case in which the team’s defense verdict was named to the "Top 10 Civil Verdict of 2014" list in Arizona Attorney Magazine. His defense verdict on behalf of Ford Motor Company in Myers v. Ford earned 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." 

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 and a member of the board of the Arizona Association of Defense Counsel. 


Bar Admissions

  • Arizona, 2001

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
      —Product Liability Committee, Trial Techniques & Technology SLG Vice Chair, 2022 – 2023
    • —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
    • The Legal 500
      —Named in Litigation: Product Liability Defense, Consumer Products, 2020 – 2023
    • Martindale-Hubbell
      —Rated AV Preeminent
    • California Daily Journal
      —Top Verdicts of 2010
    • Arizona Attorney Magazine
      —Top 10 Civil Verdicts, 2008 and 2014

Recent Verdicts & Case Studies


Recent News, Events and Blogs

Speaking Engagements

  • Easterwood v Husqvarna Trial & ROPS Update,” Speaker, PECIS Spring Meeting, April 2022
  • “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