Also known as:valid contracts · enforceable contract
Written by attorneys · grounded in primary & secondary sources — see below
An agreement between parties that satisfies the requirements of mutual assent, consideration, capacity, and legality, thereby creating legally binding and enforceable obligations. Formation turns on objective manifestations of assent rather than subjective intent or formalities such as signatures unless the statute of frauds applies. Once formed, the contract remains enforceable even if later oral agreements discharge unperformed duties or modify terms under specified conditions.
Sources & Authorities
How it applies
Common Examples
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Oral Rescission of Service Contract
Virgil Volpe and Vivian Vaughn signed a written services agreement requiring six months of consulting work. After three months, they orally agreed to end the remaining duties without further payment. The oral rescission discharges the unperformed obligations even though the original contract was subject to the statute of frauds.
Land Sale Triggers Risk of Loss
Valentina Vasquez contracted in writing to buy undeveloped acreage from Vincent Vale. Before closing, a wildfire destroyed timber on the parcel. Equity treats Valentina as owner from contract formation, placing the risk of loss on her rather than on Vincent.
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Cases
Restatements
Dictionaries
Valdez Steel and Villanueva Construction entered a written supply contract requiring written change orders. They later orally agreed to reduce the quantity by half, and Villanueva Construction purchased new equipment in reliance. The modification is enforceable despite the statute of frauds because of the material change in position.
State Contract Enforceable Under State Law
Virgil Volpe contracted with a state agency to provide training services under a written agreement approved by state officials. The contract meets all state-law requirements for formation and consideration. Objective manifestations establish mutual assent and a valid contract under applicable state rules.
Seminole Tribe of Florida v. Florida517 U.S. 44, 106 (1996)
Objective Assent Despite Claim of Jest
Vincente Vukovic and Veronica Villanueva signed a handwritten agreement on a restaurant napkin to sell a farm for a stated price. Vincente later claimed the signing was a joke, but both parties discussed terms seriously and the document contained all essential terms. The objective manifestations establish a valid contract regardless of Vincente's later assertion.
Lucy v. Zehmer196 Va. 493, 84 S.E.2d 516
Merger Agreement Approved by Board
Vivid Media and Valor Capital negotiated a merger containing deal-protection provisions. The parties exchanged signed drafts and confirmed essential terms in writing. Objective manifestations establish mutual assent, forming a valid contract under standard formation rules.
Omnicare, Inc. v. NCS Health Care, Inc.818 A.2d 914 (Del. 2003)
Common questions
Frequently Asked
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Does a signed writing always determine whether mutual assent exists?+
No. Mutual assent is shown by objective manifestations, including conduct such as accepting and using performance for weeks. A signature is not required unless the statute of frauds applies to enforceability.
Supporting sources
Can parties form a valid contract for goods that do not yet exist?+
Yes. A present-sale agreement for future goods operates as an enforceable contract to sell once the goods come into existence and are identified. Title does not pass until that point, but the contract itself is valid.
Supporting sources
When does an express disclaimer prevent contract formation?+
An express statement that discussions or documents are non-binding shows the parties do not intend to be presently bound. Courts examine objective manifestations. Such disclaimers override apparent commitments and keep the arrangement at the negotiation stage.
Supporting sources
405 U.S. 645 (1972)Family Law
…1905. Ill. Rev. Stat., c. 89, § 4. Stanley did not seek the burdens when he could have freely assumed them. Where there is a valid contract of marriage, the law of Illinois presumes that the husband is the father of any child born to the wife during the marriage; as the father, he has legally enforceable rights and duties with…