David P. Mastagni

David P. Mastagni, founder and managing partner of Mastagni Holstedt, APC, focuses on civil litigation and labor law. With over 300 proceedings tried to verdict, including more than 100 jury trials in state and federal courts, David is a distinguished figure in the legal field. His appellate experience is equally impressive, participating in over 450 state and federal cases, including those before the U.S. Supreme Court. In 2003, David achieved the largest law enforcement binding arbitration award in the nation. He is a key advisor to public and private labor unions on contract disputes and binding arbitration issues. David's unique skills extend to the state Capitol, where he has testified on peace officer, labor union, and consumer litigation matters. A lecturer for PORAC and panel attorney for their Legal Defense Fund, David is a recognized authority on public safety and labor issues. He served in the U.S. Army National Guard during the Vietnam era. At the McGeorge School of Law, he earned the American Jurisprudence Award in Evidence and now serves on the Dean’s Council. His extensive contributions to the legal community make him a vital asset to clients and colleagues alike.