Performance, Conditions, Breach, Excuse, and Third-Party Rights

Formation asks whether a contract was created. Defenses ask whether that contract should be enforced. Terms identify what the contract requires. Performance moves the analysis from agreement to action.

This is where contract law becomes operational. Once a contract exists, the question becomes: what must each party do, when must they do it, and what happens if they do not? Many Contracts exam answers succeed or fail at this stage because students overlook timing. A party may have a duty, but that duty may not yet be due. A party may fail to perform, but the failure may be excused. A breach may occur, but it may be minor rather than material. A party may reject goods, but the seller may still have a right to cure.

Performance analysis requires careful sequencing. Before declaring breach, ask: Was there a duty? Was the duty conditional? Did the condition occur? Was performance due? Was the failure serious? Was nonperformance excused? Did the right person have the right or duty to perform?

A duty is an obligation to perform. If a seller promises to deliver goods, the seller has a duty of delivery. If a buyer promises to pay, the buyer has a duty of payment. If a contractor promises to build a deck, the contractor has a duty to perform construction work.

A condition is different. A condition is an event that must occur before a duty becomes due, or an event that can cut off an existing duty. Conditions control timing and obligation. They determine whether a party must perform at all.

For example, a buyer agrees to purchase a house “if financing is approved.” The buyer’s duty to close may be conditioned on financing approval. If the financing condition does not occur, the buyer may not be obligated to complete the purchase.

Conditions can be express, implied, constructive, precedent, concurrent, or subsequent. The labels matter less than the function: a condition determines whether a duty arises, remains, or is discharged.

An express condition is created by the parties’ language. Words such as “if,” “provided that,” “on condition that,” “subject to,” “unless,” and “only if” often signal an express condition.

Suppose a homeowner contracts to buy a parcel of land “provided that the property passes an environmental inspection.” That language creates an express condition. If the property does not pass inspection, the buyer’s duty to purchase may never become due.

Express conditions usually require strict compliance. This is an important difference between conditions and ordinary promises. If a contract states that payment is due only if an architect’s certificate is issued, the certificate may be required before the payment duty arises. Substantial performance may not satisfy an express condition unless the condition is excused, waived, prevented, or otherwise limited.

This strict approach can create harsh results, so courts sometimes interpret ambiguous language as a promise rather than a condition. A promise creates a duty; breach of that duty may lead to damages. A condition controls whether another duty exists at all. Because forfeiture can be severe, courts often require clear language before treating a term as an express condition.

Constructive conditions are supplied by law rather than expressly stated by the parties. They help determine the order of performance.

In many contracts, one party’s performance is a constructive condition of the other party’s duty to perform. For example, if a builder promises to renovate a kitchen and the homeowner promises to pay when the work is complete, the builder’s substantial performance may be a constructive condition of the homeowner’s duty to pay.

Constructive conditions allow courts to coordinate exchange. Contract law generally assumes that parties who bargain for an exchange do not intend one side to perform completely while the other has no corresponding obligation. The law therefore supplies timing rules where the contract is silent.

Some duties are concurrent conditions. In a simple sale, delivery of goods and payment may be due at the same time. The seller must be ready to tender conforming goods, and the buyer must be ready to pay. Each party’s duty is tied to the other’s tender of performance.

Constructive conditions usually do not require the same strict compliance as express conditions. Under common law, substantial performance may satisfy a constructive condition, especially in service and construction contracts.

Substantial performance is a common law doctrine that permits a party who has mostly performed to recover under the contract, minus damages for defects, so long as the breach is not material.

The doctrine appears most often in construction and service contracts. Large projects rarely unfold perfectly. A contractor may complete a house with minor defects. A painter may finish the job but leave small areas requiring touch-up. A builder may install fixtures of equivalent quality but not exactly the brand specified. Contract law must decide whether these imperfections defeat the right to payment.

Substantial performance means the performing party has provided the essential benefit of the bargain, even though performance is not perfect. If substantial performance exists, the other party must generally perform, but may recover damages for the defects.

Courts consider several factors: the extent of performance, the willfulness of the breach, whether the injured party received the essential benefit of the bargain, whether damages can compensate for the defect, the hardship of forfeiture, and whether the breaching party acted in good faith.

A minor, accidental defect is more likely to be treated as substantial performance. A deliberate substitution or serious failure is less likely.

The UCC uses a different starting point for contracts for the sale of goods. Under the perfect tender rule, if the goods or the tender of delivery fail in any respect to conform to the contract, the buyer may reject them.

This rule sounds strict. If a seller agrees to deliver 100 blue chairs on June 1 and instead delivers 100 green chairs, or 90 blue chairs, or delivers on the wrong date, the buyer may have rejection rights.

But the perfect tender rule is softened by several important limitations. The seller may have a right to cure. Installment contracts receive more flexible treatment. Good faith and commercial reasonableness also shape the parties’ rights.

The seller’s right to cure is especially important. If the time for performance has not expired, the seller may notify the buyer of an intention to cure and then make a conforming delivery within the contract time. In some circumstances, even after the time for performance has expired, the seller may have a further reasonable time to cure if the seller reasonably believed the nonconforming tender would be acceptable.

For example, if Seller delivers goods a few days early and Buyer rejects because some units are defective, Seller may still have time before the delivery deadline to replace them. Buyer cannot always treat the first defective tender as the final word.

Installment contracts are also treated differently. If a contract requires delivery in separate lots, the buyer generally cannot cancel the entire contract merely because one installment has a minor defect, unless the defect substantially impairs the value of that installment or the whole contract, depending on the issue.

A breach occurs when a party fails to perform a contractual duty when performance is due. But not every breach has the same legal effect.

A material breach is serious enough to excuse the other party’s remaining performance. A minor breach gives rise to damages but does not discharge the nonbreaching party’s duty to continue performing.

The distinction matters. If one party materially breaches, the other party may suspend or terminate performance and seek damages. If the breach is minor, the other party must usually continue performing and seek compensation for the defect.

Materiality depends on whether the breach defeats the essential purpose of the contract. Courts may consider the extent to which the injured party is deprived of the expected benefit, whether damages can adequately compensate, whether the breaching party will suffer forfeiture, whether the breach can be cured, and whether the breaching party acted in good faith.

A late payment of one day in a long-term contract may be minor unless timing was essential. Delivering entirely different goods may be material. Failing to complete a central part of construction may be material. Refusing to perform altogether is usually material.

Anticipatory repudiation occurs when a party clearly and unequivocally indicates before performance is due that the party will not perform.

The statement or conduct must be definite. “I may have trouble performing” is usually not enough. “I will not deliver the goods” or “I refuse to close unless you pay more” is much stronger.

When anticipatory repudiation occurs, the nonbreaching party may treat the repudiation as a breach, suspend performance, sue immediately, or wait for performance for a commercially reasonable time. The nonbreaching party does not have to continue preparing as though nothing happened.

Repudiation may also occur through conduct. If a seller contracts to sell a unique machine to Buyer, then sells the same machine to someone else before the delivery date, that conduct may indicate inability or unwillingness to perform.

Repudiation can sometimes be retracted before the nonbreaching party materially changes position, indicates that the repudiation is final, or sues. Retraction restores the duty to perform, but only if the law permits it under the circumstances.

The UCC contains an important doctrine for insecurity. When reasonable grounds for insecurity arise, a party may demand adequate assurance of due performance. Until adequate assurance is received, the insecure party may, if commercially reasonable, suspend its own performance.

This doctrine is useful when a party has not clearly repudiated but gives reason to worry. For example, Buyer hears credible reports that Seller’s factory has shut down and Seller may not be able to deliver. Buyer may demand adequate assurances. If Seller fails to provide adequate assurance within the required time, that failure may amount to repudiation. The doctrine prevents parties from being forced to proceed blindly when legitimate doubts arise. At the same time, the grounds for insecurity must be reasonable. A vague feeling of distrust is not enough.

Sometimes a party does not perform, but the law excuses nonperformance. Excuse doctrines prevent breach liability when circumstances justify relief from duty.

Performance may be excused by impossibility, impracticability, frustration of purpose, failure of condition, waiver, prevention, or material breach by the other party. The common theme is that something has happened that makes enforcement of the original duty unfair, impossible, inconsistent with the contract’s assumptions, or inconsistent with the other party’s conduct.

Modification changes an existing contract. The rules differ between common law and Article 2.

Under the common law, modifications generally require consideration. If one party promises only to do what that party is already obligated to do, there may be no new consideration under the preexisting duty rule. A modification may be enforceable if supported by new consideration, such as additional work, earlier performance, different duties, or a fair adjustment based on unexpected circumstances.

Under Article 2, modifications for the sale of goods do not require consideration, but they must be made in good faith. This allows commercial parties flexibility while preventing extortionate modifications.

If the modified contract falls within the Statute of Frauds, the modification may need a writing. For example, if a goods contract as modified is for $500 or more, Article 2’s writing requirement may apply.

Third-party rights arise when someone who is not an original contracting party claims a right under the contract.

A third-party beneficiary is a person whom the contracting parties intended to benefit. Intended beneficiaries may be able to enforce the contract once their rights vest. Incidental beneficiaries cannot enforce.

Suppose Parent contracts with Tutor to provide lessons to Child. Child is not a party to the contract, but Child is the intended recipient of the performance. Child may be an intended beneficiary. By contrast, if a city contracts with a construction company to build a road and nearby businesses benefit from increased traffic, those businesses are likely incidental beneficiaries. They benefit, but the contract was not made to give them enforceable rights.

Vesting occurs when the beneficiary’s rights become fixed. This may happen when the beneficiary assents to the contract, materially changes position in reliance on it, or brings suit, depending on the governing rule.

Assignment involves transferring contract rights to another person. The party who transfers the right is the assignor. The person receiving the right is the assignee. The obligor is the party who must perform the duty. Most contract rights are assignable. A right to receive payment is commonly assigned. For example, Contractor may assign the right to receive payment from Owner to Bank as security for a loan.

But some rights are not assignable. Assignment may be barred if it would materially change the obligor’s duty, increase the obligor’s risk, impair the obligor’s chance of obtaining return performance, violate law, or conflict with valid contract language. The key question is whether the assignment changes what the obligor must do. Assigning a right to payment usually does not change the obligor’s burden: the obligor simply pays someone else. Assigning a right to personal performance may be more problematic.

Delegation involves transferring contractual duties to another person. The delegating party asks someone else to perform a duty owed under the contract. Duties are generally delegable unless the contract prohibits delegation or the duty involves special skill, judgment, reputation, or personal trust.

For example, a landscaping company may delegate routine mowing work unless the contract prohibits it. But a famous painter hired to create a portrait cannot delegate the painting to an unknown assistant. The promise involved personal skill and reputation.

Delegation does not usually release the delegating party from liability. If the delegate fails to perform, the original party remains liable unless there is a novation. A novation occurs when all relevant parties agree to substitute a new party and release the original obligor.

Performance analysis asks what each party must do, when performance is due, and what happens when performance fails.

A duty is an obligation to perform. A condition is an event that must occur before a duty becomes due or that may cut off a duty. Express conditions are created by language and usually require strict compliance. Constructive conditions are supplied by law and often organize the order of performance.

Under common law, substantial performance may allow recovery of the contract price minus damages for defects, especially in construction and service contracts. Under Article 2, the perfect tender rule allows rejection of nonconforming goods, but seller cure, installment rules, and good faith soften the rule.

A material breach excuses the other party’s remaining performance. A minor breach usually supports damages but does not excuse continued performance. Anticipatory repudiation occurs when a party clearly indicates before performance is due that it will not perform. Under the UCC, reasonable insecurity may justify a demand for adequate assurances.

Performance may be excused by impossibility, impracticability, frustration of purpose, failure of condition, waiver, prevention, or material breach by the other party. Modifications are governed by different rules under common law and Article 2.

Third-party beneficiary doctrine allows intended beneficiaries to enforce contracts in some circumstances. Assignment transfers rights. Delegation transfers duties. Delegation does not ordinarily release the delegating party unless there is a novation.

The key lesson is that performance questions require disciplined tracking of timing, conditions, breach severity, excuse, and the identity of the party entitled or obligated to perform.