Trust & Will Disputes in California — When Something Isn’t Right

Reviewed by Daniel J. Matloubian, Esq., CPA (inactive) — California State Bar No. 318355 · Last reviewed July 7, 2026

Trust and will disputes usually begin with a surprise. A document says something no one expected — or doesn’t say something everyone expected. A parent’s longtime caregiver appears as a major beneficiary. A trust amendment signed in the final months of life rewrites decades of consistent planning. Or the document is fine, but the trustee administering it is not: no accountings, no communication, no distributions.

If something doesn’t feel right, the feeling deserves an honest analysis — not a sales pitch. Some concerns turn out to be legally actionable. Some don’t. I will tell you which is which.

Common Trust and Will Contests

• Lack of testamentary capacity — did the person understand what they were signing, what they owned, and who their family was?
• Undue influence — was the person pressured, isolated, or manipulated into terms that benefit the influencer?
• Fraud or forgery — was the signature genuine, and did the person know what document they were signing?
• Improper execution — missing witnesses, defective notarization, or procedures that don’t satisfy California law.

A note on no-contest clauses: many people believe a no-contest clause makes a trust untouchable. California law (Probate Code §§ 21310 et seq.) enforces these clauses only in narrow circumstances — and not against a contest brought with probable cause. A no-contest clause is not a reason, by itself, to stay silent about genuine concerns.

Trustee Disputes — When the Problem Is the Administration

Not every dispute is about the document. Often the trust is valid — and the trustee is the problem:

• Failing to account — California beneficiaries have a right to accountings, and silence is not an option the law gives trustees.
• Unreasonable delay in distributions.
• Self-dealing or conflicts of interest — the trustee buying trust assets, borrowing from the trust, or favoring themselves.
• Breach of fiduciary duty in investment or management decisions.

California Probate Code § 17200 gives beneficiaries a direct path to court: petitions to compel accountings, instruct trustees, surcharge losses, and remove trustees who should not be serving.

The Planner-Litigator Perspective

Having drafted estate plans for years and litigated trust disputes for years, I bring a specific kind of insight to these matters: I’ve seen the arguments that work and the arguments that don’t. I know how disputes begin — usually in the drafting stage, when a document is ambiguous, a trustee is poorly chosen, or a family dynamic is ignored. That’s why the plans I draft are written to withstand scrutiny — and why, when I evaluate someone else’s documents in a dispute, I know exactly where to look.

The 120-Day Clock

When a trust becomes irrevocable — typically at the settlor’s death — the trustee sends a statutory notice under Probate Code § 16061.7. From the date of that notice, beneficiaries and heirs generally have 120 days to contest the trust instrument. Missing the deadline can permanently bar a challenge, regardless of how strong it would have been.

If you have received a § 16061.7 notice and you have concerns about the trust, contact an attorney now. The clock is already running.

How I Evaluate These Cases

I gather the trust documents, prior drafts and amendments where available, and the medical records that speak to capacity. I assess the strength of the claim honestly — not every dispute is worth pursuing, and pursuing a weak one costs money and family relationships. Then I identify the most direct path to resolution: negotiation, mediation, or litigation, in that order of preference where the facts allow it.

Past results in any matter described on this website do not guarantee or predict a similar outcome in any future matter. Every case is different.