Phillip R.A. Mastagni

Practice areas

Personal Injury – Products: Plaintiff, Business Litigation, Civil Litigation: Plaintiff, Civil Rights, Class Action/Mass Torts: Plaintiff, Employment Litigation: Plaintiff

Focus areas

Class Actions, Employment Discrimination, Medical Devices, Motor Vehicle Defects, Pharmaceutical, Police Misconduct, Retaliation, Wrongful Termination

Phillip Mastagni, an accomplished attorney, holds a position as a Partner within the Civil Litigation Department at the renowned law firm Mastagni Holstedt, APC. With a strong focus on Civil Litigation, he excels in trial and appellate proceedings within both California state and Federal Courts. Possessing a wealth of experience in litigation, Mr. Mastagni serves as a lawyer for prominent organizations such as the AFL-CIO Lawyers Coordinating Committee (LCC) and the Peace Officer’s Research Association of California (PORAC) Legal Defense Fund. His admissions span across various U.S. District Courts and the U.S. Court of Appeals for the 9th Circuit, showcasing his extensive jurisdictional knowledge.

Beyond domestic litigation, Mr. Mastagni extends his expertise to the international arena, encompassing litigation and consultancy across the globe. His involvement extends to countries like Russia, Germany, France, Korea, India, Italy, Canada, China, Japan, Namibia, Uganda, South Africa, the Netherlands, and the U.K.

Mr. Mastagni’s remarkable career features a diverse array of legal accomplishments. These include tackling intricate matters like police and law enforcement cases under Sec. 1983, civil defense, multifaceted civil litigation encompassing issues such as breach of contract, business torts, fraud, breach of fiduciary duty, unfair business practices, Labor-Management Reporting and Disclosure Act violations, Whistle-blower and Qui Tam cases, aviation incidents including commercial and private plane crashes, NTSB and FAA pilot hearings, products liability, tort cases, catastrophic injuries, employment disputes, and wrongful termination litigation. His involvement covers the entire litigation process from initiation to trial, and his adeptness in international civil litigation is evident.

During his time at Georgetown University Law Center, Mr. Mastagni concentrated on international and European Union law, with his proficiency extending to fluent German. His legal prowess extends beyond borders, as he has participated in cases and discovery in various countries including France, the Netherlands, the U.K., Canada (Quebec & Ontario), Japan, Korea, China, and Mexico. These endeavors have occurred both within the U.S. legal system and in accordance with the Hague Convention. Notably, he has handled numerous complex cross-border and multi-state civil cases.

Furthermore, Mr. Mastagni is an alumnus of the University of Virginia National Trial Advocacy College and maintains memberships in esteemed organizations such as the International Police Association (IPA), the Georgetown Alumni of Sacramento, Alumni Göttingen, and UC Berkeley Alumni Clubs, as well as the Kösener Senioren-Convents-Verband.