Answer:
Promisory Estoppel is a legal doctrine that restricts a party from denying that a promise was made under certain conditions,
Step-by-step explanation:
Estoppel is the legal principle according to which a person for some reason loses the right to invoke any facts in support of his claims.
In American contract law, estoppel prevents the types of fraud characteristic of domestic practice, for example, if the homeowner promises the tenant that he will not terminate the contract for a long time and the tenant makes repairs at his own expense, promissory estoppel may not allow the homeowner to use his right to terminate the lease. There are other estoppel options that differ in circumstances. To use estoppel, a party must appear in court “with clean hands” (for example, you cannot cheat from the very beginning).