4.1 Contract Types and Required Elements
Key Takeaways
- A valid contract needs offer/acceptance, consideration, legal capacity, legal purpose, and mutual assent (a meeting of the minds).
- Express vs. implied describes how a contract is formed; bilateral vs. unilateral describes who must perform; the listing agreement is bilateral and an option is unilateral.
- Void means no contract ever existed; voidable means one party may cancel; unenforceable means valid but barred by a defense such as the Statute of Frauds.
- Under the Statute of Frauds, real estate sale and lease contracts over one year must be in writing and signed to be enforceable.
- A minor's real estate contract is voidable by the minor, not automatically void.
Why contract law dominates the national exam
The contracts domain is one of the largest scored areas on the national/general portion, and nearly every transaction question assumes you know what makes an agreement legally binding. A licensee does not need to be a lawyer, but must recognize when a contract is valid, when a party can walk away, and when a writing is required.
The single most common trap is confusing the type of contract with its validity. Those are separate questions. Read each fact pattern for both: how was the agreement formed, and is it enforceable in court?
The five essential elements
Every valid contract must contain all five elements below. Remove any one and the agreement fails or becomes attackable.
| Element | Meaning | Exam trap |
|---|---|---|
| Mutual assent (offer + acceptance) | A clear offer accepted on identical terms — the "meeting of the minds" | A counteroffer rejects the original offer; it is a new offer, not acceptance |
| Consideration | Something of legal value exchanged by both sides | Past acts or "love and affection" are usually not valid consideration |
| Legal capacity | Parties of legal age and sound mind | A minor's contract is voidable by the minor, not void |
| Legal purpose (lawful object) | The contract's object must be legal | A contract to violate zoning or commit fraud is void |
| In writing (when required) | Required for real estate by the Statute of Frauds | An oral land-sale contract is unenforceable, not automatically void |
Memory hook: C-L-A-P-O (Consideration, Legal capacity, lawful Assent/agreement, lawful Purpose, in writing as Obligated). Use whatever mnemonic sticks; the exam tests the concepts, not the acronym.
Classifying contracts: how formed vs. who performs
Two independent classification systems show up together:
- Express — terms stated in words, oral or written (a signed purchase agreement).
- Implied — terms inferred from conduct (a buyer who uses a broker's services may imply an agreement to compensate).
- Bilateral — a promise for a promise; both parties are obligated. A listing agreement and a typical purchase contract are bilateral.
- Unilateral — a promise in exchange for an act; only one party is obligated until the act is performed. An option contract is the classic unilateral example: the seller is bound to keep the offer open, but the buyer never has to buy.
Worked example
A seller signs a 60-day option giving a buyer the exclusive right to purchase for $300,000. The buyer pays $5,000 option consideration. The seller is now obligated to hold the price; the buyer may walk away and simply forfeit the $5,000. That is a unilateral, express, valid contract. If the buyer exercises the option, it converts into a bilateral purchase contract.
A 17-year-old signs a contract to buy a condominium. Before closing, the minor decides not to proceed. How is this contract best described?
The validity spectrum: void, voidable, unenforceable
These three terms are tested constantly and confused constantly.
| Status | Definition | Real estate example |
|---|---|---|
| Valid | Binding and enforceable on both parties | Properly signed purchase agreement |
| Void | No legal effect; never a contract | Forged deed; contract for an illegal purpose |
| Voidable | Valid until a protected party elects to cancel | Minor's contract; contract induced by fraud or duress |
| Unenforceable | Valid on its face but a court will not enforce it | Oral land-sale contract barred by the Statute of Frauds; claim past the statute of limitations |
Key distinction: a voidable contract is enforceable unless and until the protected party rescinds. An unenforceable contract can be valid in substance but blocked by a procedural defense.
The Statute of Frauds
The Statute of Frauds requires certain contracts to be in writing and signed by the party to be charged. For real estate, this covers:
- Contracts for the sale of real property or any interest in land.
- Leases longer than one year (a short oral lease may be enforceable in many states).
- Listing agreements in most states (an exclusive listing in particular).
- Options to purchase real estate.
The writing must identify the parties, the property, the price or a means to determine it, and be signed. An oral promise to sell land is unenforceable, not void — if both parties voluntarily perform, the deal stands; the issue arises only if one party tries to back out and the other sues.
Equitable title and the moment a contract becomes binding
Once a valid, signed purchase contract exists, the buyer holds equitable title — an enforceable right to obtain legal title at closing — while the seller keeps legal title until the deed is delivered. This is why a buyer can sue for specific performance the instant the contract is binding, not just at closing.
The contract becomes binding the moment acceptance is communicated to the offeror. Before that point, an offer can be revoked by the offeror, rejected or countered by the offeree, or it can lapse by its own expiration. Death or incapacity of the offeror before acceptance also terminates a simple offer. Memorize this sequence: an offer remains revocable until acceptance is communicated, unless consideration (as in an option) holds it open.
Partial performance and the exceptions to the writing rule
The Statute of Frauds has narrow exceptions the exam likes to test. Under the partial-performance doctrine, a court may enforce an oral land contract if the buyer has done acts unequivocally referable to the contract — for example, paying part of the price, taking possession, and making improvements. Courts use this to prevent one party from using the writing rule as a tool of fraud.
Still, the safe exam answer for an ordinary oral land deal is unenforceable. Treat partial performance as the exception, not the rule, and apply it only when the fact pattern clearly shows possession plus payment plus improvements by the buyer.
A buyer and seller orally agree on the sale of a house and shake hands, but nothing is signed. The seller then refuses to sell. Which best states the buyer's legal position?