VII. Capacity
To enter a binding agreement, one must have the legal ability to do so; that is, one’s mental condition and
maturity must be such that the agreement was entered with understanding and in recognition of one’s
own interests. The three primary areas of concern are intoxication, mental impairment, and minority
(infancy/youthfulness), with minority being much the more common area of dispute.
Intoxication
Whether a court will nullify a contract on the grounds of intoxication depends on whether the person
was sufficiently intoxicated to not understand the nature and purpose of the contract. If the
objective evidence suggests that the person did not understand the transaction, the contract would
be considered voidable and could be disaffirmed by the person.
Mental Incompetence
In most cases an agreement involving a mentally incompetent person is either void or voidable.
The transaction would be void—that is, no contract would exist—where the impaired party had
been adjudged insane. If the impaired party was unable to understand the purpose and effect of the
contract but had not been legally adjudged insane, the contract would be voidable (void in some
states) at the option of the impaired party.
Minority
Minors may complete their contracts if they wish, but they also have an absolute right to rescind
most of those contracts. They may rescind until they reach adulthood and for a reasonable time
thereafter. (Many states have enacted statutes forbidding minors from disaffirming some classes of
contracts, such as those for marriage, student loans, and life insurance). The minor has a right of
recovery for everything given up in meeting the terms of the contract. Similarly, the minor must
return everything that remains in her or his possession that was received from the contract. In
many states, if nothing of the bargained-for consideration remains or if its value has been
depreciated the minor has no duty to replace it but can still recover whatever she or he put into the
contract. The minor is also liable for the reasonable value (not necessarily the contract price) of
necessaries purchased from an adult. That is, a minor must pay the adult the reasonable value of
contracted-for items such as food, clothing, shelter, medical care, basic education, and tools of the
minor’s trade.
Despite the flexibility accorded to minors entering contracts, the adults who are parties to those
contracts are bound to them and do not have the power to disaffirm. Hence, adults put themselves
at risk when they choose to bargain with minors.
Legal Briefcase: Dodson v. Shrader 824 S.W.2d 545 (Tenn. S. Ct. 1992)
VIII. Genuineness of Assent
Sometimes parties appear to have concluded a binding contract, but the courts will allow
them to escape that obligation because they had not, in fact, achieved an agreement. The
situation arises when the contract is the product of misrepresentation, fraud, duress, undue influence, or
mistake. Such agreements are voidable and may be rescinded by the innocent party because of the