David E. Mastagni

David E. Mastagni, a partner in the Labor Department at Mastagni Holstedt, APC, is renowned for his focus on labor and employment law. He represents clients in trial and appellate litigation across California and federal courts. An experienced PORAC Legal Defense Fund panel attorney, David is admitted to practice in multiple U.S. District Courts in California, the Ninth Circuit Court of Appeals, and the U.S. Supreme Court. His practice focuses on public safety representatives, handling complex civil, class-action, and collective-action cases related to labor and employment law. David addresses claims under the Fair Labor Standards Act, the Public Safety Officers’ Procedural Bill of Rights, the California Labor Code, and the Meyers-Milias-Brown Act. He is adept in collective bargaining and interest arbitration. David has argued before the First and Third California Appellate Districts, the California Supreme Court, and the Ninth Circuit Court of Appeals, with petitions for review in the U.S. Supreme Court. A frequent lecturer on the Public Safety Officers’ Procedural Bill of Rights, labor relations, and the FLSA, David has earned the “AV Preeminent” Peer Review Rating from Martindale-Hubbell, indicating his peers rank him at the highest level of professional excellence.