Ronald D Mercaldo

Ronald D Mercaldo is a partner who focuses on medical malpractice, catastrophic injuries, wrongful death, truck accidents, and dangerous roadway cases. He founded the Mercaldo Law Firm in 1978 to represent plaintiffs in serious injury matters and has dedicated decades to advocating for individuals and families facing life-altering harm.

Ronald obtained his undergraduate and Juris Doctor degrees from the University of Arizona, completing his studies in 1970. Since his admission to the Bar, he has actively litigated personal injury and medical malpractice cases, handling both insurance defense and plaintiffs’ matters early in his career before focusing exclusively on representing injured clients.

Ronald has been involved in complex litigation for more than fifty years. For the past 30 years, he has not accepted insurance company clients, concentrating instead on representing individuals harmed by negligence. His practice emphasizes thorough preparation, strong courtroom advocacy, and accountability for responsible parties.

Ronald is certified by the State Bar of Arizona in Personal Injury and Wrongful Death Litigation and served for over 20 years on the commission evaluating other attorneys seeking specialist certification. He has held leadership roles, including as president of the Southern Arizona Trial Lawyers Association, the American Board of Trial Advocates (Ariz.), and the Morris K. Udall American Inn of Court.

Ronald has been named to “Arizona’s Finest Lawyers,” “Southwest Super Lawyers,” “Best Lawyers in America,” and recognized as one of America’s top 500 lawyers. He is an AV-rated lawyer in Martindale-Hubbell, listed in the bar registry of Preeminent Lawyers, and a Fellow of the American College of Trial Lawyers.

Ronald D. Mercaldo continues to represent clients in high-stakes medical malpractice and injury cases, dedicated to justice, professional excellence, and meaningful results.

Law Office Affiliations

• Partner, The Mercaldo Law Firm
• Fellow, American College of Trial Lawyers
• President, Southern Arizona Trial Lawyers Association
• President, American Board of Trial Advocates
• President, Morris K. Udall American Inn of Court
• Frequent Lecturer, State Bar of Arizona
• Frequent Lecturer, Arizona Trial Lawyers Association

Licensed State

• Arizona

Education

• University of Arizona
  Juris Doctor (JD)
• University of Arizona
  Bachelor of Arts (BA)

Awards & Badges