Contracts exam concept
Void vs. voidable vs. unenforceable contracts
A signed agreement can have several different problems. The exam wants you to identify the defect, then decide whether the agreement has no legal effect, a protected party can avoid it, or a legal defense blocks enforcement.
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The short answer
Void means the apparent agreement has no legal effect and cannot be ratified. Voidable means one or more protected parties can elect avoidance or affirm on qualifying facts. Unenforceable means a legal defense or unmet formality blocks the requested enforcement. First check formation: an unaccepted counteroffer does not create the proposed contract.
These national study categories are separate from executed and executory when those words describe performance. Execute can also mean sign a document. This page adds Illinois writing and electronic-signature rules; it does not determine the remedy in an actual dispute.
Find the defect before choosing the label
- Check formation first. Was there an offer and acceptance on the same terms, sufficient consideration and the required assent? A material counteroffer that nobody accepts is not an automatically formed contract needing cancellation.
- For void, look for a legal foundation that cannot be supplied by later affirmation. A bargain requiring illegal performance is the standard exam example. A signature alone does not make its required purpose lawful.
- For voidable, identify who is protected. One or more parties may hold a power of avoidance, depending on the defect. Fraudulent inducement or actionable duress can give the injured party that choice. The wrongdoer does not receive the same election merely because the agreement is called voidable.
- For ratification, check knowledge and choice. Affirming after learning the material facts, or knowingly accepting benefits, can affect the power to avoid. Do not assume any payment made before discovering a problem proves informed ratification.
- For unenforceable, identify the defense and the party against whom enforcement is sought. A covered oral land-sale agreement with no sufficient signed memorandum is the familiar Statute of Frauds example. Missing writing does not make the sale purpose criminal or otherwise illegal.
- Check electronic evidence before concluding there is no writing. Under Illinois UETA, agreed electronic transactions can satisfy writing and signature requirements. Attribution, assent, necessary terms and other substantive law still matter; not every email is a completed sale contract.
| Status | What is wrong? | Who has the choice? | Exam example |
|---|---|---|---|
| Void | No legal effect | Neither party can ratify | Agreement requiring illegal use |
| Voidable | A qualifying consent, capacity or mistake defect creates a power of avoidance | One or more parties protected by the doctrine | Contract induced by actionable duress |
| Unenforceable | A defense or unmet formality blocks the requested enforcement | Apply the defense, any waiver and recognized exceptions | Covered oral land sale with no sufficient signed memorandum |
| No contract | Formation never completed | New offer and acceptance may form a later deal | Material counteroffer never accepted |
Work through the facts
Illegal intended use
A seller and buyer sign an agreement whose required purpose is to operate an enterprise that state law expressly prohibits on the property.
- The problem is not merely an oral promise or delayed lawsuit.
- The bargain requires unlawful performance as its object.
- Neither party's later affirmation can make that required purpose lawful.
Answer: The clean exam classification is void because the agreement's required object is illegal.
Purchase agreement signed under actionable duress
A buyer uses a wrongful threat that leaves the seller no reasonable alternative, and the threat causes the seller to sign. The seller promptly seeks to unwind the deal after becoming safe.
- A signed agreement appears to have formed.
- The consent defect protects the coerced seller.
- The seller, not the buyer who applied the pressure, holds the power to seek rescission.
Answer: The contract is voidable by the seller on the stated duress facts.
Fraud followed by continued performance
A purchaser learns that the seller made a material fraudulent statement, yet knowingly continues the contract for months, accepts its benefits, and expressly confirms the closing date.
- Fraud can initially give the injured purchaser a power of avoidance.
- Ratification requires informed conduct after discovery and an ability to choose.
- Continued benefits, performance, and express confirmation can be evidence of affirmation.
Answer: The contract was voidable, but the facts support a ratification issue rather than automatic nullity.
Oral agreement to sell a parcel
An owner orally agrees to sell an identified Illinois parcel for a stated price, but no memorandum or note is signed by the owner or an authorized signer.
- The subject is a sale of land.
- The Illinois Statute of Frauds calls for signed written evidence from the party to be charged.
- The defect concerns judicial enforcement and does not make the property's sale an illegal purpose.
Answer: The standard exam classification is unenforceable against the owner under the Statute of Frauds, subject to fact-specific exceptions.
Unsigned paper, attributable electronic acceptance
The parties agreed to transact electronically. An email containing the essential sale terms is electronically signed by the seller, its attribution is established, and the record can be retained accurately.
- Illinois law does not deny a record legal effect solely because it is electronic.
- The parties agreed to use electronic means, and the signature is the seller's act.
- Electronic form can satisfy writing and signature requirements when UETA applies. It does not supply missing terms, assent, authority or a lawful purpose.
Answer: Do not classify the agreement as unenforceable merely because no paper was signed.
Changed offer never accepted
A seller offers to close on October 1. The buyer signs but changes closing to November 1. The seller never accepts the changed date.
- Changing the closing date creates a counteroffer rather than mirror-image acceptance.
- The original offer was rejected by the counteroffer under the usual exam rule.
- No later acceptance forms the proposed November contract.
Answer: No agreement on the changed terms formed. Do not classify the proposed November contract as voidable simply because two people handled the same document.
Mistakes to avoid
- Calling every defective agreement void: Name the defect first. Consent defects often make a contract voidable, and formality defenses often make it unenforceable.
- Calling a covered oral land agreement illegal: The usual Statute of Frauds issue is enforceability, not an unlawful purpose.
- Letting either party void a voidable contract: The power belongs to the party the doctrine protects, not automatically to the party who caused fraud, duress, or another defect.
- Assuming a voidable contract disappears automatically: It remains capable of effect until the protected party avoids it and can be ratified on qualifying facts.
- Trying to ratify a void bargain: A truly void agreement cannot be affirmed into validity; a new lawful agreement is required.
- Treating hard bargaining as duress: Look for a wrongful threat, lack of reasonable alternative, loss of free choice, and causation.
- Assuming every mistake cancels the contract: Not every error creates a right to rescind. Materiality, the kind of mistake and who bears the risk matter. Alliance rejected the claim of mutual mistake on its actual facts; its general rule is not a holding that every mistaken contract can be canceled.
- Assuming an electronic signature cures everything: Electronic form can satisfy a formality, but it does not prove assent, authority, capacity, legal purpose, or complete terms.
- Using executed as a synonym for valid: In a performance-classification question, executed means fully performed. In a document-signing context, execute can also mean sign. Read how the word is being used; a signature alone does not establish full performance or validity.
Check your understanding
These are original teaching questions, not recalled or predicted PSI questions. Answer first, then explain why the other choices fail.
1. Which statement best describes a void contract?
- It is another name for an otherwise valid agreement awaiting performance
- It has no legal effect and cannot be ratified
- It becomes valid whenever the wrongdoer affirms it
- It remains effective until the protected party chooses avoidance
Show answer and explanation
Answer: B. It has no legal effect and cannot be ratified
A truly void agreement cannot be made valid by ratification. A protected party's election belongs to voidability, while incomplete performance describes an executory agreement. The wrongdoer's affirmation does not cure a void bargain.
2. A purchaser knowingly enters a purchase contract because of actionable fraudulent inducement and later discovers the truth. Before the purchaser elects a remedy, which classification generally fits?
- Fully performed because the purchaser signed
- Unenforceable solely because every fraudulent contract must be oral
- Automatically void in every case involving a false statement
- Voidable at the injured purchaser's election
Show answer and explanation
Answer: D. Voidable at the injured purchaser's election
The question states actionable fraudulent inducement, which commonly makes the agreement voidable by the injured party. Signing is not full performance. Fraud and missing writing are different defects; fraud does not mean the agreement must have been oral or is always void.
3. Which classification usually fits a covered Illinois oral land-sale agreement with no sufficient signed memorandum?
- Unenforceable against the party protected by the writing requirement, absent an applicable exception
- Fully performed because the parties agreed on a price
- Void because selling land is an illegal purpose
- Automatically ratified merely because one party wants enforcement
Show answer and explanation
Answer: A. Unenforceable against the party protected by the writing requirement, absent an applicable exception
The writing defect ordinarily supplies an enforcement defense under the Illinois Statute of Frauds. It does not make a lawful land sale an illegal bargain, prove performance or establish ratification. The question assumes no sufficient signed memorandum; any applicable exception needs additional facts.
4. A buyer changes a material term in the seller's offer, and the seller never accepts the change. What is the best analysis?
- The Statute of Frauds supplies the missing assent
- No contract on the changed terms formed because the response was an unaccepted counteroffer
- The counteroffer is automatically accepted when delivered
- A contract formed and either party can always rescind it
Show answer and explanation
Answer: B. No contract on the changed terms formed because the response was an unaccepted counteroffer
A material change is a counteroffer under the usual exam rule, and the stated seller never accepts it. Delivering the counteroffer is not acceptance by the seller. A writing rule does not manufacture assent or give either party a universal cancellation right.
5. Which act most strongly supports ratification of a voidable contract?
- The illegal purpose continues and both parties call it ratification
- The protected party pays before discovering the defect
- The wrongdoer declares the bargain valid while withholding the facts
- The protected party knowingly and freely affirms after learning the material facts
Show answer and explanation
Answer: D. The protected party knowingly and freely affirms after learning the material facts
An informed, voluntary affirmation by the protected party supports ratification of a voidable contract. The wrongdoer's declaration and a payment before discovery do not establish that informed election. Ratification cannot validate a truly void illegal bargain.
6. An Illinois seller argues that an agreement cannot satisfy a writing requirement because it was signed electronically. The parties agreed to transact electronically, the record contains the required terms and the seller's electronic signature is attributable to the seller. What is the best answer?
- A typed price alone proves a complete land-sale contract in every case
- Electronic form alone does not defeat the applicable writing and signature requirements
- Electronic form automatically cures fraud, incapacity and missing assent
- Electronic records can never satisfy a writing requirement in Illinois
Show answer and explanation
Answer: B. Electronic form alone does not defeat the applicable writing and signature requirements
Illinois UETA recognizes electronic records and signatures when it applies. The supplied agreement, attribution and terms matter; electronic form alone is not a reason for rejection. It also does not cure every substantive defect, and an isolated typed price does not prove all necessary elements.
Common questions
What is the difference between void, voidable, and unenforceable contracts?
A void agreement has no legal effect and cannot be ratified. A voidable contract can be avoided by the party whom the law protects, but it remains capable of ratification. An unenforceable agreement may be recognizable as an agreement, yet a defense or missing legal formality prevents a court from enforcing it. The exam expects the defect, protected party, and remedy to match the label.
Is a void contract the same as no contract?
No contract usually identifies a missing formation step, such as no acceptance of a counteroffer. Void identifies an apparent bargain with no legal effect. Courts and textbooks sometimes use these descriptions together, so do not force an absolute terminology rule. On the exam, identify the missing element or the precise legal defect first.
What is a common example of a void agreement?
An agreement requiring an illegal act as its object is a standard example. Do not infer the status of an entire agreement merely from a statement that a rule was violated. Read the particular prohibition, the legal consequence and the relevant authority. A new lawful agreement is different from ratifying a truly void one.
What is a common example of a voidable contract?
Actionable fraudulent inducement or duress commonly makes a contract voidable by the injured party. Certain capacity or mistake situations can also create a power of avoidance, with conditions and exceptions. Do not assume every mistake, every instance of pressure or every false statement proves the required legal defect.
What is a common example of an unenforceable real estate contract?
A covered oral agreement for the sale of land that lacks a signed writing is the classic example. Illinois's Statute of Frauds generally bars an action on a contract for the sale of land or specified longer interests unless a memorandum or note is written and signed by the party to be charged or a person lawfully authorized in writing.
Is an oral real estate contract always void?
No. For exam purposes, a covered oral land agreement that fails the Statute of Frauds is generally classified as unenforceable, not void or illegal. Whether a particular writing is sufficient, an exception applies, or an equitable remedy remains available is fact-specific and should not be assumed from the word oral alone.
Can a voidable contract become enforceable?
Yes. The protected party may ratify a voidable contract expressly or through conduct that clearly affirms it after gaining the ability and necessary knowledge to choose. Continuing to accept benefits can matter. The wrongdoer cannot force ratification, and Illinois decisions stress prompt action when a party seeks rescission after discovering fraud or misrepresentation.
Can a void contract be ratified?
No. Ratification can extinguish a protected party's power to avoid a voidable contract, but it cannot breathe legal effect into a truly void agreement. If the parties want a lawful relationship after a void bargain, they generally need a new agreement that satisfies formation, legality, authority, and required formalities.
Can an electronic signature satisfy the Illinois Statute of Frauds?
Generally yes when the Illinois Uniform Electronic Transactions Act applies, the parties agreed to transact electronically, and the electronic signature is attributable to the signer. An electronic record cannot be denied effect solely because of its form. It still must contain the necessary terms, reflect the person's act, and satisfy other substantive law.
Does fraud always make a contract voidable?
Be precise about the kind of fraud. Fraudulent inducement concerns an agreement the person knowingly entered but was induced to make by actionable deception. A forged signature or fraud that prevents assent to the nature of the document raises a different formation or validity issue. This guide's fraud questions specify fraudulent inducement rather than treating every fraud allegation alike.
Is a minor's contract automatically void?
No. The usual study distinction is voidable at the protected minor's election rather than automatically void. In Fletcher v. Marshall, an Illinois lease dispute, the court considered whether the tenant had ratified after attaining majority. Specific capacity rules, exceptions and later conduct matter. Do not import another state's special rule for minors and real property into an Illinois question.
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Official sources and scope
Reviewed October 24, 2026. Illinois provisions govern the writing and electronic-signature discussion; the cited court decisions illustrate the distinctions on their own facts. The California DRE reference supports general teaching definitions, not California-specific minority or property rules for Illinois. Relevant official indexed ILGA text was used where direct retrieval failed. These are original teaching questions, not PSI material.
- PSI Illinois Candidate Information Booklet dated June 24, 2026
- 740 ILCS 80/2, current Illinois Statute of Frauds for interests in land
- 815 ILCS 333/5, /7 and /9: agreement to electronic transactions, legal recognition and attribution
- Deutsche Bank National Trust Co. v. Hart, 2016 IL App (3d) 150714, paragraphs 40-42: void, voidable and ratification
- Alliance Property Management, Ltd. v. Forest Villa of Countryside Condominium Ass'n, 2015 IL App (1st) 150169, paragraphs 36-41: authority, mistake and knowledge for ratification
- California DRE Reference Book, Chapter 6: general contract classifications, used for national teaching only
- Fletcher v. Marshall, 260 Ill. App. 3d 673 (1994): minor's lease and ratification, court opinion reprint
This is exam preparation, not advice for a specific transaction. State law and the applicable facts control. Our editorial and corrections process explains how to report an issue.