John A. Castro

​Deputy County Counsel

John A. Castro joined the Finance, Government Operations, and Environment team in 2019.  Prior to joining the County, John practiced construction, real property, and contract law, representing architects, engineers, owners, developers, general contractors, and subcontractors in all facets of claims and dispute resolution, arbitration, and litigation.  John also has substantial experience with complex multi-party disputes involving construction projects of all sizes in both the public and private sectors.

John's professional expertise includes:

  • Construction dispute resolution and litigation
  • Public contracting, bidding, and procurement
  • Public works / capital projects
  • Alternative project delivery methods


  • University of California, Hastings College of the Law, J.D., cum laude, 2010
    • Executive Articles Editor & Symposium Editor, Hastings Constitutional Law Quarterly
      • Second Class Citizens, Hastings Constitutional Law Quarterly, 37 Hastings Const. L.Q. 199 (2010)
    • CALI and Witkin Awards in Criminal Law and Disability Law
    • External Political Chair, Hastings La Raza Law Students Association
    • Member, Hastings Pro Bono Society
  • University of California, Santa Cruz, B.A., Politics and Philosophy, 2005

Professional Associations

  • Member of the Forum on Construction Law, American Bar Association (2018-Present)
  • Member of the Legal Advisory Committee, Associated General Contractors (2017-2018)
  • Barrister in the Earl Warren American Inn of Court (2014)

Prior Experience

  • Senior Associate Attorney at Gordon Rees Scully Mansukhani, LLP (2017-2019)
  • Senior Associate Attorney at Boornazian, Jensen & Garthe (2011-2017)
  • Research Attorney at Superior Court of California, County of San Francisco (2010-2011)

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