Also known as: sound mind & memory · of sound mind and memory · testamentary capacity · mental capacity
Written by attorneys · grounded in primary & secondary sources — see below
The mental condition in which a person possesses the capacity to understand the nature and consequences of a legal act such as executing a will or entering a marriage.
Solomon Silver, an elderly man in assisted living, executed a will leaving his estate to a longtime neighbor. He had occasionally forgotten family names but could still describe his property holdings and intended beneficiaries in detail during the signing. The witnesses attested that he was of sound mind and memory. The will is admitted to probate because he met the capacity standard at execution.
Sophia Singh consumed alcohol and drugs before her wedding ceremony. During the vows she laughed inappropriately and needed repeated prompting to recite her lines. The officiant proceeded anyway. Because capacity is measured at the moment of the ceremony, the marriage is invalid for lack of sound mind and memory.
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Sean Steele, residing in assisted living and dependent on rental income, signed an irrevocable deed transferring one building to his caregiver's son. He discussed the income loss but showed intermittent confusion about his finances. Because he lacked the capacity to understand the nature and consequences of the transfer at execution, the deed is invalid.
Stella Shapiro executed a will shortly before death while exhibiting memory lapses and social withdrawal. Her estranged sibling contests the will on capacity grounds. The court evaluates whether she understood her property and natural objects of bounty at execution.
Stephen Shaw's lawyer drafted a will without confirming the client's understanding of beneficiaries. After death the will is challenged for lack of sound mind and memory. The attorney faces liability for failing to document capacity at execution.
Simon Stern's estate involves a contested will executed while the testator was under guardianship. The probate court must determine whether the testator had sound mind and memory despite the guardianship. The court applies the capacity standard at execution.
A testator must understand the nature and extent of property, the natural objects of bounty, and the disposition being made. Intermittent confusion does not automatically defeat capacity if the testator can still grasp these elements at execution.
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Capacity is determined at the exact time of the ceremony. Visible intoxication or confusion that prevents understanding the act voids the marriage even if the party was sober earlier.
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Yes. The donor must meet will-level capacity and also understand the gift's effect on future financial security and dependents. Reliance on the transferred asset as primary income supports a finding of insufficient capacity.
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Guardianship does not automatically negate capacity. The test is whether the person understood the will's elements at execution despite the guardianship.
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…interference with inheritance expectancy because probate court “necessarily found that [the decedent] signed the will with testamentary capacity, and that it reflected his intent, was not the result of coercion or undue influence, and was valid”); Neill v. Yett , 746 S. W. 2d 32, 35-36 (Tex. App. 1988) (complaint alleging fraud and…