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David Casarrubias

David C. Casarrubias-González

Senior Counsel
(415) 995-5893


David focuses his practice on public agency litigation with an emphasis on complex matters, class actions, and multi-party litigation. With a background in writs, appeals, and law and motion, David brings invaluable knowledge and a unique perspective to his cases. In state court, David is experienced with the California Government Claims Act and the array of defenses it provides to public agencies. In federal court, David routinely defends special districts, counties, and state departments against various constitutional claims.

David was a prior Summer Associate at Hanson Bridgett and a judicial extern for Chief Judge Jennifer Gee in the U.S. Department of Labor's Office of Administrative Law Judges. Currently, he is on the faculty at the University of California College of the Law, San Francisco (formerly UC Hastings) where he teaches legal research and writing, and appellate advocacy courses.


J.D. cum laude UC Law San Francisco (Formerly UC Hastings) ( 2018 )
B.A. magna cum laude California State University, Long Beach ( 2014 )

Academic Distinction

Governor, UC Hastings Alumni Association Board of Governors

Member, UC Hastings Honor Society

Co-Chair, UC Hastings Moot Court Board (2017-2018)

Admissions and Courts

U.S. Court of Appeals for the Ninth Circuit
U.S. Court of Appeals for the Tenth Circuit
U.S. District Court for the Northern District of California
U.S. District Court for the Eastern District of California
Supreme Court of the United States


Pro Bono Committee, Member
Recruiting Committee, Member

Immigration Law. Secured a published Ninth Circuit victory on behalf of a gay Nigerian man seeking asylum and protection under the Convention Against Torture in the United States after he was discovered being intimate with his boyfriend in a Nigerian hotel and was threatened with death as a result of that discovery.

Cannabis Law. Successfully defended a cannabis distribution company in a jury trial against a cannabis cultivator alleging distributor breached an implied-in-fact contract when distributor attempted to return cannabis and cannabis products that would not sell.

Anti-SLAPP. Assisted with drafting winning appellate brief defending trial court’s denial of two anti-SLAPP motions in a class action alleging a conspiracy to deny non-locals access to a public beach via threats and violence.

Writ Petition. Assisted with drafting successful opposition to writ petition on standing grounds in an action involving the Registrar of Contractors of the California Contractors State License Board.

Immigration Law. Successfully reversed the Board of Immigration Appeals and Immigration Judge’s in absentia removal order by rebutting the federal government’s presumption that its removal order was delivered via regular mail.

Constitutional Law. Represented a group of behavioral science and economics scholars as amici curiae in appeal addressing interplay between free speech and equal protection rights.

Government Law. Successfully represented local transportation districts in their defense against a high-stakes, multi-million dollar, class action alleging violations of state and federal due process clauses based on toll violation noticing procedures.

Hispanic National Bar Association, Chair of the Young Lawyers Division 

Leadership Council on Legal Diversity (LCLD), Pathfinder (2023)

Executive Committee of the Bar Association of San Francisco's Appellate Law Section

Bay Area Lawyers for Individual Freedom (BALIF) 

The Barristers Club of the Bar Association of San Francisco

San Francisco La Raza Lawyers Association

The National LGBT Bar Association

Lawdragon 500 X - The Next Generation, Appellate; Commercial Litigation (2023)

California Lawyers Association, Wiley W. Manuel Pro Bono Legal Services Award (2018–2023)

Super Lawyers, Appellate; Civil Litigation (2023)

 Udo v. Garland (9th Cir. 2022) 32 F.4th 1198

303 Creative LLC v. Elenis (10th Cir. 2021) 6 F.4th 1160

Jobs & Housing Coalition v. City of Oakland (2021) 73 Cal.App.5th 505

People v. Skiff (2021) 59 Cal.App.5th 571

Spencer v. Mowat (2020) 46 Cal.App.5th 1024

Judicial Apprentice to the Hon. Judge Judith L. Meyer, Los Angeles County Superior Court, Long Beach Courthouse

Judicial Extern to the District Chief Judge Jennifer Gee, U.S. Department of Labor, Office of Administrative Law Judges