1. Offer
An offer is a clear, specific proposal to enter into an agreement. 'I'll sell you my car for $15,000' is an offer. 'I might sell my car for a good price' is not. The offer must be communicated to the offeree and must show intent to be bound by the terms. Advertisements are generally not considered offers — they're 'invitations to treat' (invitations to make an offer).
2. Acceptance
Acceptance must be unconditional and match the terms of the offer exactly. If you respond with 'I'll buy your car for $14,000,' that's not acceptance — it's a counter-offer, which terminates the original offer. Acceptance must also be communicated to the offeror. Silence is generally not acceptance unless the parties have a prior course of dealing that establishes it.
3. Consideration
Consideration is the 'something for something' element. Each party must give something of value — money, services, goods, or even a promise to do (or not do) something. A one-sided promise ('I'll give you my car') with nothing in return is a gift, not a contract. The consideration doesn't need to be equal in value — courts generally don't judge the fairness of the bargain, only whether consideration exists.
4. Capacity
All parties must have the legal capacity to enter into a contract. Minors (under 18 in most jurisdictions), people with certain mental incapacities, and intoxicated individuals may lack capacity. Contracts with minors are typically voidable — the minor can enforce the contract against the adult, but not the other way around.
5. Legality of Purpose
A contract for an illegal purpose is void and unenforceable. This includes contracts for illegal goods/services, contracts that violate public policy, and contracts that are unconscionable (shockingly unfair). Even if all other elements are met, courts will not enforce an illegal agreement.
6. Mutual Assent (Meeting of the Minds)
Both parties must understand and agree to the same terms. If there's a fundamental misunderstanding about a key term (a 'mutual mistake'), there may be no valid contract. This is why clear drafting matters — ambiguous language can undermine mutual assent.
Protecting Yourself
Even if a contract meets all six elements, hidden risks can still undermine your position. Before signing, run your agreement through an AI review tool like ContractRev to catch unfair terms, missing clauses, and problematic language.
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