John J. Kastner,
Insurance Law
Insurance Law
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Mr. Kastner’s practice is anchored in his belief that there is no substitute for hard work. He approaches all of his cases with that mantra in mind.Based in Tucson, Kastner is a trial attorney whose practice extends throughout Arizona and encompasses insurance defense, insurance coverage, premises liability, municipal liability, catastrophic injury and wrongful death, commercial liability and professional negligence.Kastner represents insurance carriers in first-party claims. He also represents self-insured businesses and individuals. His experience representing both insureds and insurers provides him with a unique perspective that is further diversified by his tenure as Judge Pro Tem for the Pima County Superior Court.Kastner is AV Preeminent® Peer Review Rated™ by Martindale-Hubbell®, representing the highest rating in legal ability and ethical standards. He is also recognized by Best Lawyers® as one of the top attorneys in his field. He is an active member of the Federation of Defense & Corporate Counsel (FDCC), an organization comprised of leaders in the insurance and corporate defense bar. He currently serves on the Local Rules of Practice Advisory Committee for the Federal District Court of Arizona. Mr. His experience representing both insureds and insurers provides him with a unique perspective that is further diversified by his tenure as Judge Pro Tem for the Pima County Superior Court.Kastner is AV Preeminent® Peer Review Rated™ by Martindale-Hubbell®, representing the highest rating in legal ability and ethical standards. He is also recognized by Best Lawyers® as one of the top attorneys in his field. He is an active member of the Federation of Defense & Corporate Counsel (FDCC), an organization comprised of leaders in the insurance and corporate defense bar. He currently serves on the Local Rules of Practice Advisory Committee for the Federal District Court of Arizona. Mr. Kastner’s practice is anchored in his belief that there is no substitute for hard work. He approaches all of his cases with that mantra in mind. Based in Tucson, Kastner is a trial attorney whose practice extends throughout Arizona and encompasses insurance defense, insurance coverage, premises liability, municipal liability, catastrophic injury and wrongful death, commercial liability and professional negligence. Kastner represents insurance carriers in first-party claims. He is also recognized by Best Lawyers® as one of the top attorneys in his field. He is an active member of the Federation of Defense & Corporate Counsel (FDCC), an organization comprised of leaders in the insurance and corporate defense bar. He currently serves on the Local Rules of Practice Advisory Committee for the Federal District Court of Arizona.
Recognized in Best Lawyers since 2018
Edward Phillips
After a major commercial insurer wrongfully denied a significant business interruption claim, our company was facing severe financial strain. We turned to John Kastner at The Mercaldo Law Firm based on his specific recognition in insurance law. With nearly three decades of experience, Mr. Kastner immediately demonstrated a masterful grasp of the intricate policy language and the applicable Arizona law. His approach, rooted in a clear belief in hard work, was evident throughout. He meticulously prepared our case, leaving no stone unturned, which proved critical during negotiations. His deep litigation background in both insurance and employment matters gave him a strategic edge. The result was a settlement that not only covered our losses but exceeded our expectations. John is the definitive professional you want in your corner for high-stakes disputes.