Estoppel is a legal principle that prevents a person or entity from asserting a legal right or taking a legal position that contradicts or is inconsistent with its earlier position, behavior, or agreement. The person or entity is said to be “estopped” from changing its position, behavior, or agreement because another person or entity has relied on its earlier position, behavior, or agreement (detrimental reliance).
In Arizona, estoppel is a legal doctrine that can be invoked in various contexts, such as contract disputes, property law, and employment law, among others. The principle of estoppel prevents a party from asserting a claim or a defense that contradicts their previous statements or actions if the other party has relied on those statements or actions to their detriment. This is to ensure fairness and prevent injustice due to inconsistent behavior. There are different types of estoppel, including promissory estoppel, equitable estoppel, and estoppel by deed, each with its own specific requirements and applications. Arizona courts will consider the circumstances of each case, including the conduct of the parties and the reliance by the injured party, to determine if estoppel applies. It is important to note that the application of estoppel can be complex, and the specific facts of each case are critical in determining its applicability. An attorney can provide guidance on how estoppel may affect a particular legal issue in Arizona.