MBE Rules · Wills, Trusts & Estates

Capacity Standards

Capacity standards compared

The rule

Testamentary capacity is lower than contractual capacity — a conservatee may still make a will; trusts with dispositive complexity are tested by contract capacity under Andersen, and marriage requires still less.

In plain English

Testamentary capacity refers to a person's ability to make a valid will, which is less stringent than the capacity required for entering into a contract. This means that even individuals who are under a conservatorship can still create a will, while more complex trusts require the higher standard of contractual capacity to be valid.

Worked example

An elderly woman, who has been placed under a conservatorship due to dementia, decides to write a will leaving her estate to her grandchildren. Despite her mental condition, she understands that she is making a will and who her beneficiaries are. The will is deemed valid because her testamentary capacity meets the lower standard.

Memory hook

Wills need less brainpower than contracts!

The trap

Exams may present scenarios where a conservatee's capacity is questioned, leading students to mistakenly apply the stricter contractual capacity standard instead of the lower testamentary capacity standard.

How examiners test it

Questions often involve fact patterns where an individual’s mental capacity is in doubt, requiring candidates to distinguish between testamentary and contractual capacity.

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