The Building Blocks of a Valid Contract

Contract law is one of the most heavily tested subjects on the NALA Certified Paralegal exam and one of the most relevant areas of law for everyday practice. Whether you work in corporate transactions, real estate, employment law, or litigation, you will encounter contracts constantly. Understanding how a contract is formed, from the initial offer through acceptance and the exchange of consideration, is fundamental knowledge that every paralegal must possess.

The Elements of a Valid Contract

A valid, enforceable contract requires four essential elements:

Mutual Assent (Offer and Acceptance): The parties must reach a meeting of the minds through an offer by one party and acceptance by the other
Consideration: Each party must give something of value in exchange for the other's promise or performance
Capacity: The parties must have the legal capacity to enter into a contract (not minors, not mentally incapacitated, not intoxicated)
Legality: The subject matter and purpose of the contract must be lawful

The Offer

An offer is a manifestation of willingness to enter into a bargain, made in such a way that another person would be justified in understanding that their assent is invited and will conclude the bargain. To be valid, an offer must include:

Definite terms: The offer must include sufficiently definite terms, including the identity of the parties, the subject matter, the quantity, and the price (although the UCC is more flexible on some of these requirements for the sale of goods)
Communication: The offer must be communicated to the offeree
Intent: The offeror must demonstrate a present intent to be bound, as determined by an objective standard (what a reasonable person would understand)

Advertisements, price lists, and catalogs are generally considered invitations to make an offer, not offers themselves, unless they are specific enough to constitute a unilateral offer (such as a reward poster).

Termination of Offers

An offer can be terminated before acceptance through several mechanisms: revocation by the offeror (effective upon receipt by the offeree), rejection by the offeree, a counteroffer (which acts as both a rejection and a new offer), lapse of the stated time period, death or incapacity of either party, or destruction of the subject matter. An important exception is the option contract, in which the offeree pays consideration to keep the offer open for a specified period, making it irrevocable during that time.

Acceptance

Acceptance is an unequivocal expression of assent to the terms of an offer. Under the common law "mirror image rule," an acceptance must match the offer exactly. Any deviation constitutes a counteroffer rather than an acceptance. The UCC relaxes this rule for the sale of goods under Section 2-207, which allows a definite and seasonable expression of acceptance to operate as an acceptance even if it contains additional or different terms.

The method of acceptance depends on the type of offer. A bilateral contract is accepted by a return promise, while a unilateral contract is accepted by completing the requested performance. The mailbox rule provides that acceptance by mail is effective upon dispatch (when properly addressed and stamped), while revocations are effective upon receipt.

Consideration

Consideration is the bargained-for exchange that distinguishes an enforceable contract from a mere gift promise. Each party must either confer a benefit on the other or incur a legal detriment. Common issues tested on the CP exam include:

Past consideration: A promise made in exchange for something already done is generally not enforceable because past actions were not bargained for
Preexisting duty rule: A promise to do something you are already legally obligated to do is not valid consideration
Illusory promises: A promise that does not actually commit the promisor to anything is not consideration
Promissory estoppel: A substitute for consideration when a party reasonably relies on a promise to their detriment

The Statute of Frauds

Certain contracts must be in writing to be enforceable under the Statute of Frauds. The most commonly tested categories include contracts for the sale of land, contracts that cannot be performed within one year, contracts for the sale of goods over $500 (UCC Section 2-201), suretyship agreements, and contracts made in consideration of marriage.

Master Contracts for the CP Exam

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Contract Formation: Offer, Acceptance, and Consideration Explained for Paralegals