Conditional; Kinds of Conditions

Conditional Obligations

A conditional obligation is an obligation whose demandability, acquisition of rights, or extinguishment depends upon a future and uncertain event, or upon a past event unknown to the parties. The decisive element is uncertainty as to the event itself, because an event that is certain to arrive is a period even if the exact date of arrival is unknown.

A condition is a modality of an obligation, not the prestation itself. The prestation answers what must be given, done, or not done; the condition answers whether the obligation becomes demandable, remains effective, or is extinguished by an uncertain event.

The Civil Code treats conditional obligations differently depending on whether the condition suspends the birth or demandability of the right, or whether it extinguishes a right that is already effective. This distinction controls enforceability, preservation of rights, restitution, risk of loss, and retroactivity.

Condition Distinguished from Period

Kinds of Conditions According to Effect

Suspensive Condition

A suspensive condition delays the acquisition of rights until the uncertain event happens. Before fulfillment, the creditor has no demandable right to the principal prestation, but has an expectancy protected by law.

The classic rule is that acquisition of rights depends upon the happening of the event constituting the condition. If the condition does not happen, the conditional obligation does not mature into an enforceable duty to perform the principal prestation.

During pendency of a suspensive condition, the creditor may take appropriate actions to preserve the creditor's rights. This recognizes that a conditional right is not yet demandable but may be defeated by acts that impair the subject matter or frustrate possible future enforcement.

A debtor who pays before fulfillment of a suspensive condition may recover the payment if the payment was made by mistake. The rule prevents premature performance from being converted into a waiver when the debtor did not intend to abandon the benefit of the condition.

When the suspensive condition is fulfilled, the obligation generally produces effects retroactively from the day the obligation was constituted. Retroactivity protects the expectation that the obligation, once the uncertain event occurs, is treated as effective from its agreed origin, subject to rules on fruits, interests, and the nature of the prestation.

Resolutory Condition

A resolutory condition does not suspend demandability because the obligation is effective at once. The uncertain event instead extinguishes the obligation or the rights already acquired when the event happens.

Before the resolutory condition occurs, the creditor may demand performance and the debtor must comply according to the terms of the obligation. If the condition happens, the parties must generally restore to each other what they have received, because the legal basis for retaining the prestation has disappeared.

If the resolutory condition does not happen, the right already acquired becomes consolidated. The obligation then continues as an ordinary effective obligation, subject to its other terms and applicable law.

Kinds of Conditions According to Cause or Dependence

Potestative Conditions

A potestative condition depends upon the will of one of the parties. Its validity depends on whose will controls the condition, whether the condition is suspensive or resolutory, and whether the will involved is purely arbitrary or connected with an act or circumstance beyond mere whim.

A suspensive condition that depends solely upon the will of the debtor voids the conditional obligation. A promise such as an undertaking to pay only if the debtor later chooses to pay creates no juridical necessity and therefore lacks the binding force required of an obligation.

The rule against a purely potestative suspensive condition protects mutuality and juridical tie. If the debtor alone can decide whether the obligation will ever become effective, the creditor receives no enforceable undertaking.

A condition dependent solely upon the creditor's will does not suffer from the same defect because the debtor is already bound to comply if the creditor elects to enforce the stipulated benefit. The law objects to the debtor reserving complete control over whether the debtor will be bound.

A resolutory condition dependent on a party's will is generally valid because the obligation is already effective before the condition is exercised. In that setting, the condition operates as a stipulated mode of termination rather than as a device by which the debtor avoids being bound from the beginning.

A condition is not purely potestative when fulfillment depends on the debtor's act plus external facts, third-party participation, market conditions, government action, financing, or other circumstances not controlled solely by the debtor. Such a condition may be valid because the obligation is not left entirely to arbitrary desire.

Casual Conditions

A casual condition depends upon chance or upon the will of a third person. It is valid because neither party has complete control over the happening of the event.

Examples include obligations dependent upon the occurrence of a natural event, the approval of a third person, the result of a lawful drawing, or another circumstance beyond the parties' unilateral control. The creditor assumes the risk that the uncertain event may not happen, while the debtor remains bound if it does happen.

Mixed Conditions

A mixed condition depends partly upon the will of a party and partly upon chance or the will of a third person. It is valid when the party's act is only one component of fulfillment and the final event is not subject to that party's exclusive discretion.

A condition requiring a buyer to obtain financing, secure approval, or complete a transaction with a third person may be mixed because the party must act, but fulfillment still depends on another person or external circumstance. Good faith remains relevant because a party cannot deliberately frustrate the condition and then rely on its non-fulfillment.

Kinds of Conditions According to the Nature of the Event

Positive Conditions

A positive condition requires that an event happen. The obligation becomes effective, demandable, or extinguished only if the specified event occurs in the manner contemplated by the parties.

If the positive condition must occur within a determinate time, the obligation is extinguished once that time expires without the event happening. The obligation is likewise extinguished when it becomes indubitable that the event will not take place, even before the time fixed has fully elapsed.

Where no exact time is fixed, the intention of the parties and the nature of the obligation determine how long fulfillment may reasonably be awaited. The law does not favor indefinite uncertainty when the surrounding circumstances show that the parties contemplated a limited time for the event.

Negative Conditions

A negative condition requires that an event not happen. The obligation becomes effective when the period fixed for the event's possible occurrence expires without the event happening.

If it becomes evident that the event cannot occur, the negative condition is deemed fulfilled even before the expiration of the period. When no period is fixed, fulfillment is determined by the time probably contemplated by the parties, considering the nature of the obligation.

The difference between positive and negative conditions lies in what fulfills the condition: occurrence fulfills a positive condition, while non-occurrence within the contemplated time fulfills a negative condition. This difference controls whether the creditor must prove that an event happened or that it failed to happen within the relevant period.

Kinds of Conditions According to Possibility and Legality

Possible Conditions

A possible condition is one that can happen according to nature, law, and the circumstances contemplated by the parties. It may be difficult, expensive, or uncertain, but it is not impossible in fact or in law.

Difficulty does not equal impossibility. A condition remains possible if performance or occurrence can still be achieved through lawful means, even if fulfillment requires effort, expense, or cooperation.

Impossible Conditions

An impossible condition is one that cannot happen because of physical impossibility, legal impossibility, or the inherent contradiction of the stipulated event. When an obligation depends upon an impossible positive condition, the conditional obligation is generally annulled because the required event can never give life to the obligation.

The Civil Code treats a condition not to do an impossible thing as not having been agreed upon. Since no person can do what is impossible, a promise conditioned on refraining from an impossible act adds no real uncertainty and does not defeat the obligation.

If the impossible condition is attached to an obligation that already exists independently of the condition, the condition may be disregarded rather than used to destroy the independent obligation. The controlling inquiry is whether the obligation truly depends upon the impossible event.

Unlawful or Immoral Conditions

A condition contrary to law, morals, good customs, public order, or public policy is void and may annul the obligation that depends upon it. The law will not make the birth or enforcement of an obligation depend upon the commission of an unlawful or immoral act.

A condition requiring a person to commit a crime, violate a statute, defraud another, impair family relations contrary to law, or perform an act offensive to public policy cannot be the foundation of an enforceable conditional obligation. The vice lies not in uncertainty, but in the legal character of the event required.

A condition requiring a person not to do an unlawful act may be valid because it aligns with the legal duty to refrain from illegality. The effect depends on whether the condition promotes lawful conduct or makes an illegal event the basis of juridical rights.

Other Useful Classifications

Express and Implied Conditions

An express condition is stated in the agreement or in the legal source of the obligation. An implied condition is inferred from the nature of the obligation, the evident intention of the parties, or the circumstances necessary to give business efficacy to the undertaking.

Conditions that suspend or extinguish obligations are not lightly presumed when they defeat immediate demandability. Clear language or necessary implication is important because a condition changes the ordinary effect of a perfected obligation.

Divisible and Indivisible Conditions

A divisible condition is capable of partial fulfillment when the parties intended separate portions of the event to have separate legal effects. An indivisible condition must be fulfilled completely before the stipulated consequence follows.

When several events are required conjunctively, all must occur unless the agreement shows a different intention. When events are stipulated disjunctively, the occurrence of one sufficient alternative fulfills the condition.

Conjunctive and Alternative Conditions

A conjunctive condition requires the concurrence of all stipulated events. Failure of one required event prevents fulfillment because the parties made all events components of the same condition.

An alternative condition is fulfilled by the occurrence of any one of several stipulated events, unless the parties assigned different effects to each event. The wording of the agreement determines whether the events are cumulative requirements or alternative triggers.

Constructive Fulfillment of Conditions

A condition is deemed fulfilled when the obligor voluntarily prevents its fulfillment. This rule rests on the principle that no person may take advantage of a condition's non-occurrence when that non-occurrence was caused by that person's own voluntary obstruction.

Constructive fulfillment usually requires a pending condition, an obligor who has an interest in preventing fulfillment, and voluntary conduct that actually prevents or materially frustrates the event. Fraud is not always necessary, but the prevention must be attributable to the obligor rather than to a stranger or to causes beyond the obligor's control.

The doctrine applies most clearly to suspensive conditions because the obligor would otherwise escape liability by stopping the event that would make the obligation demandable. It also reflects the broader rule that conditions must be performed and awaited in good faith.

Not every failure to cooperate automatically produces constructive fulfillment. The act must amount to prevention of the condition, and the party invoking the rule must show that the non-fulfillment is fairly chargeable to the obligor's voluntary conduct.

Effects While the Suspensive Condition Is Pending

Before fulfillment of a suspensive condition, the creditor's right is conditional but legally protected. The creditor may seek measures that preserve the subject matter, prevent fraudulent disposition, interrupt prescription where appropriate, or otherwise maintain the possibility of effective enforcement.

The debtor remains bound to respect the conditional relationship and may not impair the creditor's expectancy in bad faith. The debtor, however, cannot ordinarily be compelled to perform the principal prestation until the condition is fulfilled.

Payment or delivery made before fulfillment is premature. If made by mistake, it may be recovered; if made knowingly and voluntarily, the consequences depend on waiver, intent, and the rules on payment and unjust enrichment.

Retroactive Effects Upon Fulfillment

Upon fulfillment of a suspensive condition, the effects of the obligation to give generally retroact to the day the obligation was constituted. Retroactivity is a legal fiction designed to protect the benefit expected by the creditor once the uncertain event occurs.

In reciprocal obligations to give, fruits and interests received during the pendency of the condition are generally deemed mutually compensated. This avoids unnecessary accounting where each party was both debtor and creditor during the same conditional interval.

In unilateral obligations to give, the debtor generally appropriates the fruits and interests received before fulfillment, unless a contrary intention appears. The rule recognizes that only one party is bound to give and that the law does not automatically transfer interim benefits before the condition happens.

For obligations to do or not to do, the court determines the retroactive effect according to the nature of the prestation and the purpose of the obligation. Personal acts and abstentions cannot always be retroacted in the same mechanical way as delivery of a determinate thing.

Loss, Deterioration, and Improvement Before Fulfillment

The Civil Code supplies special rules for a determinate thing that is lost, deteriorates, or improves while a suspensive condition is pending. These rules allocate risk between the debtor who still holds or controls the thing and the creditor whose right may later become effective.

A thing is considered lost when it perishes, goes out of commerce, or disappears in such a way that its existence is unknown or it cannot be recovered. The classification matters because total loss, partial impairment, and improvement have different consequences.

These rules assume that the obligation involves a determinate thing because generic things generally do not perish in law. If the debtor promised a generic object, the debtor can ordinarily comply by delivering another thing of the same kind and quality.

Effects of Resolutory Conditions

When a resolutory condition is fulfilled, the obligation is extinguished and the parties are generally restored to their previous positions. Restitution is the ordinary consequence because performance received under an obligation later resolved should not be retained without the juridical basis that supported it.

The rules on loss, deterioration, and improvement apply by analogy to the party who must return what was received after the resolutory condition occurs. Fault determines liability for loss or impairment, while the nature and source of improvements determine who benefits from them.

For obligations to do or not to do, the court determines the effects of extinguishment according to the circumstances. Some acts cannot be physically undone, so the remedy may take the form of damages, restitution of value, or other consequences consistent with the nature of the prestation.

Conditional Obligations in Reciprocal Undertakings

In reciprocal obligations, each party is both creditor and debtor, and each prestation is generally the consideration for the other. Non-performance by one party may activate the injured party's right to seek fulfillment or resolution, with damages in either case.

The power to resolve reciprocal obligations for substantial breach is often described as an implied resolutory condition. It is implied because the law treats serious non-compliance by one party as a ground for ending the reciprocal tie, even when the contract does not expressly use the word condition.

Resolution for breach is not the same as an ordinary stipulated resolutory condition that automatically occurs upon an external event. Unless the contract or law validly provides automatic resolution, judicial or legally effective extrajudicial action may be necessary to settle whether the breach justifies resolution.

The injured party may generally choose between exacting performance and seeking resolution, and may claim damages in either case. The court may grant a period for performance when there is just cause, which reflects the equitable character of resolution in reciprocal obligations.

Waiver, Fulfillment, and Non-Fulfillment

A party for whose benefit a condition was established may waive it when the waiver does not prejudice law, public policy, or the rights of third persons. Waiver may be express or clearly implied from acts inconsistent with insisting on the condition.

Fulfillment must correspond to the condition agreed upon. A materially different event does not satisfy the condition unless the parties accept it, the difference is legally immaterial, or the condition has been validly waived.

Non-fulfillment has different effects depending on the type of condition. Non-fulfillment of a suspensive condition prevents the obligation from becoming effective, while non-fulfillment of a resolutory condition preserves the existing obligation.

Bad faith in relation to a condition may change the legal result. Prevention by the obligor may produce constructive fulfillment, while fraudulent manipulation by the party benefited by fulfillment may support defenses, damages, or denial of the claimed effect.