Cynthia Castillo litigates a broad range of high-stakes civil cases with a focus on consumer class actions and complex business disputes.

Cynthia’s breadth of experience and creativity enable her to quickly identify solutions for a wide variety of disputes. In the past year, she has represented a leading beauty company in nationwide consumer products class action litigation, a large construction company in high-stakes public contracting litigation, a restaurant chain in consumer litigation related to California’s new drip-pricing law, and a nonprofit client in a defamation dispute. 

Cynthia has experience preparing for and taking cases to trial. She successfully defended a private equity management firm at trial in an employment and breach of contract suit brought by one of its former officers. She has also prosecuted and tried to verdict a number of criminal cases as a “loaner” Deputy District Attorney in the Contra Costa County District Attorney’s Office. 

Cynthia is active in the community. She currently serves on the Board of Trustees for the San Francisco Law Library. She is a longtime member of the board of directors for the San Francisco La Raza Lawyers Association. As a board member, she co-founded the Latina Committee, which serves as a network for Latina lawyers practicing in the Bay Area. She also regularly mentors young lawyers, law students, and prospective law students. She is a past member of the Edward J. McFetridge Inn of Court. Her pro bono practice has included assisting a victim of domestic violence from Honduras to obtain asylum in the United States.

Cynthia served as a law clerk for the Honorable Philip Martinez of the United States District Court for the Western District of Texas. Before attending law school, she taught 4th and 6th grade with Teach for America.