What is Improper Execution of a Will

Dax thought he had everything covered. His mother, Eleanor, passed away last month, and he was reasonably confident he’d inherit the family cabin. But at the reading of the will, his aunt revealed a recently-signed codicil—a change to the original will—that left the cabin to her. Dax remembers his mother being frail and confused during the signing, and now he’s facing a potential legal battle costing upwards of $50,000 just to prove the codicil isn’t valid.

Improper execution of a will is a surprisingly common issue in probate litigation. California law is very specific about how a will must be signed and witnessed, and even minor deviations can open the door to a challenge. While a handwritten will (a “holographic will”) has relaxed requirements, a typed or printed will demands strict adherence to the rules. The problem isn’t necessarily that the intent isn’t there, but that the law requires concrete proof of that intent, and a flawed execution makes providing that proof difficult.

What Specific Requirements Must Be Met?

California Probate Code § 6110 dictates the core requirements for executing a will. Essentially, the testator (the person making the will) must:

• Sign the will, or direct someone else to sign on their behalf in their presence and under their direction. This seems straightforward, but “presence” has a specific legal meaning, which we’ll cover below.
• Sign the will in the presence of two witnesses.
• The witnesses must understand that the document they are signing is the testator’s will. They can’t just be signing a random paper.
• The witnesses must sign the will during the testator’s lifetime. A post-mortem signature is invalid.

Failing to meet even one of these requirements can create a vulnerability. The most frequent issues I see after 35+ years of practice as an Estate Planning Attorney and CPA involve discrepancies in witnessing, the testator’s capacity, and issues surrounding undue influence. As a CPA, I also focus on the tax implications of a flawed will—specifically, the potential loss of the step-up in basis if a challenge drags on and delays probate.

What Does “In the Presence Of” Actually Mean?

This is a frequent sticking point. California law defines “presence” as either physical presence or constructive presence via contemporaneous video conferencing. In simpler terms, the testator and the witnesses must be able to see and hear each other in real time. Simply having someone sign a document in the same room at a different time doesn’t satisfy the requirement. The requirement for video conferencing was added during the pandemic, and while it provides flexibility, it still demands a clear, uninterrupted connection.

What if the Will Isn’t Properly Witnessed?

If the witnesses didn’t sign in the testator’s presence, or they weren’t aware they were signing a will, the will can be deemed invalid. This doesn’t automatically mean the testator’s assets will pass according to the laws of intestacy (California’s default inheritance rules). There’s a process called “substantial compliance,” where a court might uphold the will if the errors were minor and didn’t impact the testator’s intent. However, relying on substantial compliance is risky and adds significant legal costs.

What About Holographic Wills – Can They Be Less Formal?

Holographic wills are entirely handwritten by the testator. They don’t require witnesses. However, the entire will must be in the testator’s handwriting. Even a single typed line can invalidate the entire document. The handwriting must also be demonstrably that of the testator; a signature alone isn’t enough if the rest of the document is printed.

Can a Will Be Challenged Due to the Testator’s Mental Capacity?

Even if a will is properly executed, it can still be challenged if the testator lacked the mental capacity to understand what they were doing. Probate Code § 6100.5 outlines a relatively low threshold for capacity in California. The testator must have understood the nature of the testamentary act (making a will), the nature of their property, and their relationship to their living family members. Dementia or delusions, if severe enough to impact this understanding, can invalidate the will. This is where Dax’s concerns about his mother’s confusion come into play.

What if Someone Pressured the Testator to Change Their Will?

Undue influence is another common grounds for contesting a will. Probate Code § 21380 creates a presumption of undue influence if a gift is made to a caregiver of a dependent adult. This means the caregiver has to prove they didn’t coerce the testator into making the gift. This is a complex area of law, and proving undue influence often requires evidence of isolation, manipulation, or a sudden, unexplained change in the will.

What About Forgery or Fraud?

If someone forged the testator’s signature, the will is obviously invalid. Distinguishing between execution fraud (forged signature) and inducement fraud (lying to the testator) is critical. Proving a signature is fake often requires a forensic handwriting expert, whereas proving fraud in the inducement requires evidence that the testator relied on a lie to change their estate plan.

What If a Beneficiary Contest Falls Outside the 120-Day Window?

Don’t delay in pursuing a will contest. Probate Code § 8270 states that 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.

What separates an efficient California probate process from a drawn-out conflict over authority and assets?

The path through California probate is rarely a straight line; it requires precise adherence to statutory deadlines, accurate asset characterization, and strict fiduciary compliance. Without a clear roadmap, what begins as a standard administrative proceeding can quickly dissolve into a costly battle over interpretation, valuation, and beneficiary rights.

To initiate the case correctly, you must connect the filing steps through petition for probate, confirm the location using jurisdiction and venue issues, and ensure no interested parties are missed by strictly following notice of petition rules.

Ultimately, the difference between a routine distribution and a protracted legal battle often comes down to preparation. By anticipating the demands of the Probate Code and addressing potential friction points with beneficiaries and creditors upfront, fiduciaries can navigate the system with greater confidence and lower liability.

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.