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Probate & Trust Litigation | Coral Gables, Florida

What Is Testamentary Capacity in Florida? A Plain Guide

How Florida defines the mental ability needed to make a valid will, when it is measured, and why it is sometimes questioned after a death. Responsible lawyer: Leslie V. Marenco.

By Leslie V. Marenco · Published October 27, 2026

Testamentary Capacity in Florida: The Short Answer

Testamentary capacity is the mental ability to make a valid will. Fla. Stat. § 732.501 sets that basic rule.

Capacity is only one question a court asks when a will is challenged. Those are separate grounds, and a contest often raises several of them at once.

Families usually meet this issue when an heir or beneficiary doubts a document. Trust Counsel, PL represents beneficiaries, heirs and fiduciaries in probate and trust disputes. This page explains the test in plain terms, so you know what a court is actually asking.

If a parent signed a will during a hospital stay or while memory was slipping, and you're not sure it reflects their wishes, we're glad to talk it through with you. Talk it through with Trust Counsel, PL — the first consultation is free, confidential, and carries no obligation.

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Who May Make a Will in Florida Under Fla. Stat. 732.501

Any person who is of sound mind and either 18 or older, or an emancipated minor, may make a will. The phrase “sound mind” is where capacity lives. A court does not ask whether the person was healthy, wealthy or wise.

Signing rules often appear in the same dispute. Fla. Stat. § 732.502 requires a will to be in writing. The testator, meaning the person making the will, must sign at the end, or another person must sign for them in their presence and at their direction.

The testator’s signature or acknowledgment must be made in front of at least two attesting witnesses. Those witnesses must sign in the presence of the testator and of each other.

The Elements a Court Looks At

Here is a simple example. A parent names a spouse and three adult children, knows the family home and a bank account exist, and understands the will gives each child a share. Whether a person meets the legal test depends on the facts of each case. A parent who cannot name the children or does not know the home is in the estate raises a different question.

Why Capacity Is Measured at the Time of Signing

A person can have clear days and confused days, so timing is central.

A diagnosis, such as dementia, does not decide the question by itself. Whether capacity existed on a given day depends on the facts, and the evidence from that period carries the most weight.

Families often focus on the diagnosis or the last months of life. That focus can miss the period that matters. The right question is what the testator understood when the pen touched the paper.

Who Carries the Burden of Proof in a Will Contest

The person offering the will must first show that it was formally executed and attested. Under Fla. Stat. § 733.107, that showing is made prima facie, meaning it is enough at first look. Fla. Prob. R. 5.275 sets out the same sequence.

After that first showing, the person contesting the will must establish the grounds for the challenge. Their evidence has to show why probate should be opposed.

Timing matters. A will contest cannot be started before the testator dies, under Fla. Stat. § 732.518. The statute, Fla. Stat. § 733.212, provides that an interested person on whom a copy of the notice of administration is served must file any objection that challenges the validity of the will, the venue, or the jurisdiction of the court on or before the date that is 3 months after the date of service of a copy of the notice of administration on that person. The 3-month time period may only be extended for estoppel based upon a misstatement by the personal representative regarding the time period within which an objection must be filed. Unless sooner barred, all such objections must be filed no later than the earlier of the entry of an order of final discharge of the personal representative or 1 year after service of the notice of administration. Waiting can cost the right to object.

Evidence Courts Use: Medical Records, Witnesses and the Attorney’s File

Courts look at evidence from the period around signing. Medical records are one source. Physician notes, hospital charts and cognitive evaluations from those weeks can show the testator’s condition. Records from far earlier or later may carry less weight.

Witnesses add another layer. The two attesting witnesses, family members, caregivers and others who saw the testator near the signing date can describe how the person spoke, what they knew and how they acted. A physician who examined the testator may later give an opinion about capacity, and that opinion is the physician’s own.

The drafting lawyer’s file can be central. Intake notes, questions asked at meetings, drafts and meeting records can show what the testator said about family, property and the plan. Families who are questioning a will often benefit from asking early what records exist.

Not sure what your next step is?

Talk it through with Trust Counsel, PL — the first consultation is free, confidential, and carries no obligation.

Capacity Versus Fraud, Duress, Mistake and Undue Influence

Lack of capacity is a different ground from the others. Under Fla. Stat. § 732.5165, a will is void if its execution is procured by fraud, duress, mistake or undue influence. Any part procured that way is void. The rest stays valid if it is not invalid for other reasons.

Ground Core question
Fraud Was the testator deceived into signing?
Duress Was the testator forced or threatened into signing?
Mistake Did the testator sign because of a materially wrong belief?
Undue influence Did someone pressure or control the testator’s decisions?

Undue influence often overlaps with capacity. A caregiver who controlled daily decisions may be relevant to both. Where a presumption of undue influence applies, Fla. Stat. § 733.107 states that the presumption shifts the burden of proof. That presumption protects against abuse of fiduciary or confidential relationships.

Related Questions About Trusts, Trustees and Personal Representatives

Capacity disputes often sit beside questions about trusts and estate administration. Trust litigation in Florida covers disputes over trusts, wills and the people who run them. Trust Counsel’s attorneys can serve individually as trustee or personal representative. The firm advises and represents trustees, personal representatives and beneficiaries.

Readers often ask how a fiduciary steps aside. See trustee resignation in Florida. A personal representative (often called an executor) may face the same question. See personal representative resignation in Florida.

Some readers also ask whether assets can be sold while a contest is pending. That question is covered at trust property sales during a contest.

Talk With a Coral Gables Trust Litigation Attorney About a Will You Are Questioning

Many people reach this page after a parent signed a will during a hospital stay, a dementia diagnosis or a stretch of confusion. The document may not match what that person wanted, and the timing leaves you unsure what to do next.

Leslie V. Marenco is the responsible lawyer for this page. The firm’s only office is in Coral Gables. We serve clients in Florida. To talk through your situation, call (305) 707-7126 or schedule online for a free, confidential first consultation, with no obligation to continue. A matter may be referred to another lawyer or firm when that is appropriate.

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Frequently Asked Questions

What is testamentary capacity in Florida?

Testamentary capacity is the mental ability required to make a valid will.

Testamentary capacity in Florida

When is testamentary capacity measured in Florida?

A person who has memory problems or a medical condition may still have capacity during a lucid period when the will is signed.

Can a will be challenged for lack of testamentary capacity in Florida?

Yes. An interested person can file a will contest in probate court, usually arguing that the person lacked the required mental capacity when the will was signed. In Florida, the person challenging the will generally carries the burden of proving the lack of capacity.

Trust Counsel, PL, 201 Alhambra Circle, Suite 802, Coral Gables, FL 33134. The information provided on this website is for general informational purposes only and should not be construed as legal advice for any individual case or situation. Viewing this website does not create an attorney-client relationship, nor is it intended to do so.

Key Questions This Guide Answers

What it means

Testamentary capacity is the mental ability required to make a valid will. It is a legal standard, not a diagnosis.

How Trust Counsel Can Help

Probate and trust litigation

The firm focuses on probate and trust litigation, including will and trust disputes for beneficiaries, heirs and fiduciaries.

Guidance for fiduciaries and beneficiaries

The firm advises and represents trustees, personal representatives and beneficiaries. Trust Counsel's attorneys can serve individually as trustee or personal representative.

Coral Gables office

The firm's office is in Coral Gables, and we serve clients in Miami-Dade, Broward and Palm Beach counties.

Free first consultation

Your first consultation is free, confidential and carries no obligation to continue.

Important

Capacity questions depend on the specific facts, including medical history, timing and the circumstances of signing.

Call Now — Free Consultation (305) 707-7126