Jonathan Barnes

TEL: 602.263.4437
FAX: 602.200.7813
Legal Assistant: Ginger Stahly

Jon is a clerkship-trained appellate lawyer with significant experience handling federal and state appeals in all types of civil litigation, including insurance bad faith, medical malpractice, governmental liability, premises liability, employment, family law, and torts. In addition to briefing and arguing appeals, Jon also assists trial counsel with crafting litigation strategy, preserving the record for appeal, and preparing and arguing complex motions.

  • Santorii v. MartinezRusso, 2016 Published Opinion: Arizona’s real estate statutes do not establish an employer-employee relationship between real estate brokers and agents, nor do they create a non-delegable duty by the broker to supervise an agent’s driving. Obtained summary judgment in matter involving wrongful death. When returning from a sales appointment, the real estate agent’s car crossed the center line and struck Santorii’s tractor-trailer, killing both men. Santorii’s wife brought a wrongful death lawsuit against MartinezRusso, alleging that the real estate broker was vicariously liable for the agent’s negligence.  The Court of Appeals affirmed summary judgment for the broker because (1) Arizona’s real estate statutes do not create an employer-employee relationship between brokers and agents; (2) the same statutes do not impose upon the broker a non-delegable duty to supervise an agent’s driving; and (3) based on the undisputed facts, the agents was an independent contractor of the broker. Santorii v. MartinezRusso, August 2016. Maricopa County Superior Court.  
  • Esquivel v. City of Yuma, 2016 Summary Judgment Order
  • Austin v. Peoria Unified School District, 2015
  • Jaynes v. McConnell, 2015
  • Pinal v. Honorable Cooper/Gaffney, 2015
  • Plaintiff’s v. Tucker Plumbing Inc., 2013

Professional Associations & Memberships

  • Young Lawyer Division of the Arizona State Bar, Appellate Practice Section liaison
  • Former Appellate Practice Section Liaison

Civic & Community Associations

  • Best Lawyers in America: Ones to Watch®, Appellate Practice, 2021

Presentations & Publications


Arizona State University, Sandra Day O’Connor College of Law., 2010
Northern Arizona University B.A., Philosophy, 2004

Bar Admissions

Arizona, 2010
California  (inactive), 2011
U.S. District Court, District of Arizona
U.S. Court of Appeals, Ninth Circuit