Contract formation requires mutual assent: a valid offer, acceptance, and consideration. However, even where those elements appear on the surface, a contract may still be legally ineffective. A void contract has no legal effect and is treated as though it was never formed. A voidable contract is legally operative unless and until the injured party elects to rescind it.
Defenses to formation challenge whether a valid contract was ever created.
- Misrepresentation requires a material false statement, intent to induce reliance, and justifiable reliance causing damages.
- Fraudulent misrepresentation adds scienter — the defendant knew the statement was false.
- Mutual mistake renders a contract voidable where both parties share an erroneous assumption about a material term, provided the adversely affected party did not assume the risk.
- Unilateral mistake requires the additional showing that the non-mistaken party knew or should have known of the error, or that enforcement would be unconscionable.
- Unconscionability is found when a contract is so oppressive or one-sided that it shocks the conscience. It is also a formation defense and courts decline to enforce the contract.
- Duress and incapacity defenses follow a consistent pattern: physical duress renders a contract void; improper threat, undue influence, mental incapacity, and intoxication render it voidable.
- Economic duress is narrowly construed. Mere financial hardship is insufficient. It applies only where a pre-existing contractual relationship exists, the opposing party threatens breach to extract new terms, and the threatened party has no reasonable means of avoidance.
How these issues appear on the bar exam
On the MBE, these concepts are tested through answer choices that turn on a single element. The correct answer almost always rests on one missing or defective element. For example, no consideration, a false pre-contractual statement, a shared mistaken assumption about a material fact. The distractor choices typically misidentify the defense category (e.g., selecting mutual mistake when only one party was mistaken) or misapply the void/voidable distinction to reach the incorrect remedy.
On essays, contract formation questions often present multiple issues. A fact pattern may establish a contract, introduce facts suggesting a defect in formation, and then ask whether the contract is enforceable or what remedies are available. The well-organized answer addresses formation first, identifies the applicable defense, states whether the result is void or voidable, and then addresses remedies.
When a fact pattern raises more than one potential defense, address each in turn and specify whether the result is void or voidable. The available remedy, whether rescission, restitution, or enforcement, follows directly from that.
Master contract formation at BarTaker
Accurate knowledge of black letter law is the foundation of every contracts analysis. BarTaker‘s quizzes and flashcards cover the full scope of formation rules and every major defense organized for fast retention and direct application to MBE questions and essay fact patterns.