Contract Glossary
Estoppel
Definition
A legal principle that prevents someone from going back on their word when another person reasonably relied on that word and would be harmed by the reversal. In plain English: if you said it, acted on it, and someone trusted you — you can't take it back.
In Practice
Estoppel comes up when there's no formal contract but someone made a promise you relied on. Say a landlord tells you verbally that your rent won't increase, so you invest $10,000 renovating the space. Under promissory estoppel, a court might hold the landlord to that promise even without a written agreement.
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Frequently asked questions about estoppel
A contract requires offer, acceptance, and consideration. Estoppel fills the gap when there's a promise but no formal contract — it prevents someone from breaking a promise that another person reasonably relied on, even without a signed agreement.
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Create your contractThis content is for informational purposes only and does not constitute legal advice. For contracts with significant financial or legal implications, review by a qualified attorney is recommended.