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Trust Litigation in San Mateo County

Last updated October 9, 2026

In this county

Trust and probate disputes in San Mateo County go to its Superior Court. Covers the 120-day/60-day contest deadline, accountings, trustee removal and section 859.

Related statewide pages

Frequently asked questions

Can a trust be sued in California?

The claims are brought against the trustee, in the trustee's capacity, or through a petition about the trust. A beneficiary or cotrustee may commence a proceeding under Probate Code section 16420 when a trustee commits or threatens a breach of trust, and a trustee or beneficiary may petition under section 17200 concerning the trust's internal affairs or to determine whether the trust exists.

What does a trust litigation attorney do?

A trust litigation attorney brings or defends court proceedings over trusts. That work includes section 17200 petitions, breach of trust proceedings under section 16420, removal petitions under section 15642, trust contests within the section 16061.8 deadline and claims that a trustee violated the self-dealing rules of section 16004.

How long does a trust beneficiary have to bring a breach of trust claim?

Three years, measured one of two ways under Probate Code section 16460(a). If the beneficiary received an account or written report that adequately disclosed the claim, the period runs from receipt; if no such account or report disclosed it or none was received, it runs from when the beneficiary discovered or reasonably should have discovered the subject of the claim.

What is the deadline to contest a trust in California?

For a person served with the trustee's notification under section 16061.7(a)(1), Probate Code section 16061.8 sets the later of two dates: 120 days from service of the notification, or 60 days from delivery of a copy of the trust terms during that 120-day period. The period does not run from the death itself.

What happens if a trustee refuses to provide an accounting?

A beneficiary may petition to compel an account under section 17200(b)(7) if the trustee has not submitted a requested account within 60 days after written request and no account was made in the six months before the request. Under section 17206, the court may make any orders necessary or proper, including appointing a temporary trustee.

Can a trustee be removed in California?

Yes, under Probate Code section 15642(a), by the trust instrument, by the court on its own motion, or on petition of a settlor, cotrustee or beneficiary under section 17200. Grounds include breach of trust, unfitness, cotrustee hostility that impairs administration, failing to act and excessive compensation; the court decides each case on its evidence.

Does a no-contest clause prevent a beneficiary from challenging a trust?

Not always. Under Probate Code section 21311(a), the clause may be enforced only against listed contests, including a direct contest brought without probable cause, so a direct contest supported by probable cause as section 21311(b) defines it is not one the clause can be enforced against.

Where are trust and probate cases filed in San Mateo County?

In the Superior Court of California, County of San Mateo. Current filing information is published on the court's website at sanmateo.courts.ca.gov.

Questions About a Trust or Estate Dispute?

Trust and probate disputes are personal, and often painful. Our attorney is here to listen to what's happening in your family and answer your questions in plain language. Call or send us a message.

Reviewed by Russell E. Griffith, Esq.

California Trusts & Estates Attorney

California State Bar No. 120564

Licensed in California Since 1985

California Western School of Law

Sources & authorities

  1. 01Superior Court of California, County of San Mateo — California Courts
  2. 02California Courts Self-Help Guide — California Courts Self-Help
  3. 03State Bar of California, Attorney Search — apps.calbar.ca.gov
  4. 04Cal. Prob. Code § 16061.7 — California Legislative Information
  5. 05Cal. Prob. Code § 16061.8 — California Legislative Information
  6. 06Cal. Prob. Code § 21380 — California Legislative Information
  7. 07Cal. Prob. Code § 21311 — California Legislative Information
  8. 08Cal. Prob. Code § 16004 — California Legislative Information
  9. 09Cal. Prob. Code § 16060 — California Legislative Information
  10. 10Cal. Prob. Code § 16061 — California Legislative Information
  11. 11Cal. Prob. Code § 16062 — California Legislative Information
  12. 12Cal. Prob. Code § 16064 — California Legislative Information
  13. 13Cal. Prob. Code § 17200 — California Legislative Information
  14. 14Cal. Prob. Code § 17206 — California Legislative Information
  15. 15Cal. Prob. Code § 16420 — California Legislative Information
  16. 16Cal. Prob. Code § 15642 — California Legislative Information
  17. 17Cal. Prob. Code § 16440 — California Legislative Information
  18. 18Cal. Prob. Code § 16460 — California Legislative Information
  19. 19Cal. Prob. Code § 15681 — California Legislative Information
  20. 20Cal. Prob. Code § 15686 — California Legislative Information
  21. 21Cal. Prob. Code § 859 — California Legislative Information
  22. 22Cal. Prob. Code § 6100.5 — California Legislative Information
  23. 23Cal. Prob. Code § 8250 — California Legislative Information
  24. 24Cal. Prob. Code § 8270 — California Legislative Information
  25. 25Cal. Prob. Code § 8502 — California Legislative Information