Mark Horne

Mark Horne, Esq., is a supervising partner at Degnan Horne and represents clients in litigation involving residential and commercial real estate law matters and medical malpractice claims in Arizona. He is an experienced trial attorney who has argued before Arizona appellate courts and federal courts. He handles disputes requiring detailed preparation, courtroom advocacy, and strategic analysis. His practice also includes emergency relief and provisional remedies, giving him experience with urgent matters where injunctions, restraining orders, or receivership may be necessary.

Mark earned his bachelor’s degree in philosophy from Northern Arizona University in 2004 and his J.D. from California Western. He was admitted to the Arizona State Bar in 2012. His education and admission support a litigation practice focused on real estate disputes, medical malpractice, and related civil matters. He applies his legal training when evaluating claims, preparing cases, and advocating for clients across Arizona courts in civil cases and appeals.

Mark has successfully argued before the Arizona Court of Appeals, the Arizona Supreme Court, the US District Court for the District of Arizona, and the Ninth Circuit. He has also first-chaired multiple jury trials with a winning record. His experience includes preliminary injunctions, temporary restraining orders, and receivership matters. He uses that background to address complex disputes where timing, evidence, and courtroom strategy can significantly affect the outcome for clients.

Mark Horne brings substantial trial and appellate experience to real estate and medical malpractice litigation. He was named one of the top 100 lawyers in Arizona by AZBig Media in 2021. His background includes successful jury trials and arguments before state and federal appellate courts. He also handles emergency remedies that may require swift legal action. His practice emphasizes preparation, effective advocacy, and practical strategies for clients facing complex disputes.

Law Office Affiliations

• Supervising Partner, Degnan Law, PLLC
• Member, State Bar of Arizona

Licensed State

• Arizona

Education

• California Western
  Juris Doctor (JD)
• Northern Arizona University
  Bachelor’s Degree