Florida courts apply an objective standard to mutual assent. The question is not what each party subjectively intended, but what a reasonable person in the other party's position would have understood from the communications and conduct. A party who expresses agreement — by signing a document, sending an email, or beginning performance — is generally bound by that expression even if their private intention was different.

This standard protects the reasonable expectations of the party who relied on the other's expression of agreement. It also means that a party cannot escape a contract by claiming they did not "really" mean what they said, as long as their words and actions reasonably communicated agreement.

Mutual assent is established through the offer-and-acceptance process. The offeror proposes terms; the offeree accepts them. When both parties have communicated agreement to the same terms, mutual assent exists.

Assent can be expressed through words — written or oral — or through conduct. Signing a contract, clicking "I agree," beginning performance, or accepting delivery of goods can all manifest assent depending on the circumstances.

The terms must be sufficiently definite for mutual assent to be meaningful. If the parties agree on some terms but leave essential terms open for future negotiation, a court may find that no contract was formed because the parties had not yet reached agreement on the complete bargain.

A party's undisclosed intention does not override the objective meaning of their communications. If a party signs a contract intending to perform only part of it, they are bound by all of it. If a party makes an offer intending it as a joke but a reasonable person would understand it as genuine, the offeror may be bound if the offeree accepts in good faith.

A genuine mutual misunderstanding — where both parties used the same words but meant different things — can prevent contract formation if the misunderstanding goes to a material term and neither party's meaning was more reasonable than the other's. This is different from a unilateral mistake, where only one party was wrong about the terms.

Florida courts do not treat "intention to create legal relations" as a separately numbered element of contract formation. The objective manifestation of agreement to definite terms is what matters, not a separate inquiry into whether the parties "intended" to be legally bound.

Mutual assent questions arise when a party claims no contract was formed, when the parties dispute what terms they agreed to, or when a misunderstanding about a material term is alleged. These questions are highly fact-specific.

Before relying on an informal exchange as a binding agreement — or before claiming that no contract was formed — having an attorney review the communications and circumstances can provide a realistic assessment of the legal position.

Stewart Law reviews and drafts contracts for Florida businesses. See the contract review service or contact us to discuss a specific agreement.