Who is Allowed to Challenge a Will

I had a client, Mac, come to me last year absolutely devastated. His mother had recently passed, leaving everything to a new “friend” she’d met at a church social. Mac hadn’t even known this person, and his mother had always expressed her desire for her estate to be divided equally between her three children. He was prepared to fight, but his initial attorney told him, bluntly, he likely had no case. He’d been quoted a legal fee of $15,000 just to file the initial paperwork, money he didn’t have, only to be told later he lacked “standing.” It was a cruel and expensive lesson.

The truth is, contesting a will isn’t like in the movies. You can’t just walk into court because you think it’s unfair. California law is very specific about who has the legal right to challenge a will—what we call “standing.” As an estate planning attorney and CPA with over 35 years of experience, I’ve seen countless family disputes hinge on this one issue. And having a CPA background is critically important, as the tax implications of a will challenge – the step-up in basis, potential capital gains, and the need for accurate valuation – are often overlooked, leading to unintended consequences.

What Does “Standing” Actually Mean?

Probate Code § 48 dictates that you must be an “interested person” to bring a will contest. This isn’t a subjective feeling; it’s a legally defined status. Generally, this means you would financially benefit if the current will is overturned. Here’s a breakdown of who typically qualifies:

• Beneficiaries Named in a Prior Will: If you were named in a previous version of the will, you have a strong claim to standing. You have a direct financial stake in challenging the current document.
• Heirs-at-Law: Even if you weren’t in a will, if you’d be entitled to inherit under California’s intestate succession laws (i.e., as if there were no will), you likely have standing. This includes spouses, children, parents, and siblings.
• Disinherited Beneficiaries: This is common. If you were mentioned in a previous will and were removed in a later version, you have grounds to contest.
• Creditors: If the estate owes you money, you can contest the will to ensure your debt is paid.

What If I’m Not An “Interested Person?”

It’s tough, but often you’re out of luck. Simply being a close relative or feeling wronged isn’t enough. A friend of the deceased, no matter how close, generally won’t have standing unless they can demonstrate a financial loss—for example, a promise in the will that wasn’t fulfilled. This is why early legal consultation is paramount.

How Does Standing Relate to the Reason for the Contest?

Standing establishes who can sue; the reason for the contest—the legal grounds—determines why. Some common reasons include:

• Lack of Testamentary Capacity: Was your mother of “sound mind” when she signed the will? Probate Code § 6100.5 sets a relatively low bar for capacity, but it still requires she understood what she was doing.
• Undue Influence: Was someone coercing your mother to change her will? This often involves a caregiver or someone in a position of power. Probate Code § 21380 creates a presumption of undue influence if a gift is made to a care custodian.
• Fraud: Was your mother intentionally misled to sign the will? It’s important to distinguish between Execution Fraud (a forged signature) and Inducement Fraud (lying to the testator).
• Forgery: Is the signature on the will actually your mother’s? This often requires a forensic handwriting expert.
• Improper Execution: Was the will signed and witnessed correctly, according to California law?

The 120-Day Rule: A Critical Deadline

Regardless of your standing or the grounds for the contest, time is of the essence. Once the will is admitted to probate, interested parties have a strict 120-day window to file a petition to revoke probate. If you miss this deadline, the will is generally locked in stone, even if it was forged or signed under duress.

This is why Mac’s case was so tragic. He’d waited too long, assuming he had ample time to gather evidence. Don’t make the same mistake. If you have any concerns about a will, contact an attorney immediately to understand your rights and protect your inheritance.

What failures trigger contested proceedings and court intervention in California probate administration?

California probate is designed to provide court-supervised transfer of property, yet cases often break down when authority is unclear, required steps are missed, or disputes arise over assets, notice, and fiduciary conduct. When the process is misunderstood, families can face avoidable delay, escalating conflict, and increased exposure to creditor issues, hearings, or litigation before the estate can close.

California probate is most manageable when authority is documented early, assets are classified correctly, and procedure is followed consistently from petition through closing. When the process is approached with realistic expectations about notice, claims, accounting, and dispute risk, the estate is more likely to move toward closure without avoidable conflict or delay.

Verified Authority on California Will Contests

• The 120-Day Statute of Limitations: California Probate Code § 8270
  Time is the enemy in a will contest. Under Section 8270, an interested person may petition the court to revoke the probate of a will, but this petition MUST be filed within 120 days after the will is admitted. Missing this deadline is usually fatal to the case.
• Mental Competency Standard: California Probate Code § 6100.5 (Unsound Mind)
  This statute defines exactly what “mental incompetency” means in probate. It is not just general forgetfulness; the contestant must prove the deceased did not understand the nature of the testamentary act, could not recollect their property, or was suffering from a specific hallucination or delusion that dictated the will’s terms.
• Presumption of Undue Influence (Caregivers): California Probate Code § 21380
  To protect vulnerable seniors, California law automatically presumes undue influence if a will leaves assets to a paid care custodian or the lawyer who drafted the instrument. This shifts the heavy burden of proof onto the accused to prove their innocence.
• No-Contest Clause Enforceability: California Probate Code § 21311
  Many wills contain threats to disinherit anyone who challenges them. This statute limits the power of those clauses. A beneficiary cannot be penalized for a contest if the court finds they had “probable cause” to file the lawsuit.
• Standing to Contest: California Probate Code § 48 (Interested Person)
  Not everyone can sue. To contest a will, you must qualify as an “interested person”—typically an heir who would inherit under intestate succession (if there were no will) or a beneficiary named in a prior valid will.
• Financial Elder Abuse Remedies: California Probate Code § 859 (Double Damages)
  Will contests often overlap with elder abuse claims. If the court finds that a person used undue influence, fraud, or bad faith to take assets (or change a will) to the detriment of the estate, they can be liable for twice the value of the property taken, plus attorney fees.