Breen Arntz

Personal Injury Attorney

Breen Arntz is a nationally respected trial attorney with more than three decades of courtroom experience litigating and trying complex, high-exposure civil cases. As Of Counsel and Senior Trial Lawyer to Heidari Law Group, Mr. Arntz brings a distinguished record of success in catastrophic injury, wrongful death, insurance bad faith, medical malpractice, product liability, traumatic brain injury, spinal injury, and other complex tort litigation matters. He is widely recognized for his ability to take difficult cases to verdict and for his strategic command of jury trials.  

Mr. Arntz is a member of the prestigious American Board of Trial Advocates (ABOTA), an invitation-only organization composed of the nation’s most experienced trial lawyers and judges dedicated to preserving the civil jury trial system. He also holds the AV Preeminent® rating from Martindale-Hubbell, the highest peer-review distinction available, reflecting the highest levels of professional excellence, legal ability, ethics, and trial advocacy.  

Throughout his career, Mr. Arntz has focused his practice on representing victims and families in serious injury and wrongful death cases involving commercial trucking collisions, automobile accidents, medical negligence, defective products, nursing home abuse, premises liability, fires and explosions, and other catastrophic events. He has tried more than fifty jury trials to verdict and is frequently retained by attorneys and law firms as lead trial counsel when a case is approaching trial. His reputation as a courtroom advocate has made him a sought-after resource for complex litigation throughout Nevada and the western United States.  

As Of Counsel to Heidari Law Group, Mr. Arntz works closely with the firm’s litigation team on high-value personal injury, wrongful death, and insurance bad-faith matters. His involvement provides clients with seasoned trial judgment, advanced jury presentation techniques, strategic case development, and extensive courtroom experience. His ability to simplify complex medical, scientific, and technical issues for juries has helped secure favorable outcomes in some of the most challenging civil cases.  

Mr. Arntz earned his Bachelor of Arts degree from the University of Utah and his Juris Doctor from Brigham Young University J. Reuben Clark Law School. He was admitted to the Nevada Bar in 1989 and is also licensed in Utah.