Promissory estoppel is a legal doctrine that prevents someone from making a promise that they will not keep.

Elements of promissory estoppel:

• Promission: The promise made by the promisor.
• Acceptance: The promisor’s reliance on the promise.
• Misrepresentation: The promisor’s failure to disclose material facts about the promise.
• Unjust enrichment: The promisor’s gain from the promise.

Requirements for a valid promissory estoppel:

• The promisor must have made a promise that is definite, unambiguous, and certain.
• The promisor must have intended to rely on the promise.
• The promisor must have been aware of the facts upon which the promise is based.
• The promisor must have failed to disclose material facts about the promise.

Examples of promissory estoppel:

• A landlord promises to repair a tenant’s apartment, but fails to do so.
• A seller promises to deliver a car on time, but fails to do so.
• A manufacturer promises to warranty a product, but fails to honor the warranty.

Legal consequences of promissory estoppel:

• The promisor is bound to fulfill the promise.
• The promisor can be held liable for any damages caused by their failure to uphold the promise.
• The promisor can be sued for breach of contract.

Additional notes:

• Promissory estoppel is a common law doctrine, meaning that it applies to all states in the United States.
• Promissory estoppel is a significant doctrine in contract law.
• Promissory estoppel can be used to resolve a variety of disputes, including breach of contract, fraud, and misrepresentation.