Estoppel by deed

Estoppel is a common law doctrine which, when it applies, prevents a litigant from denying the truth of what was said or done. The doctrine of estoppel by deed (also known as after-acquired title) is a particular estoppel doctrine in the context of real property transfers. Under the doctrine, the grantor of a deed (generally the seller of a piece of real property) is estopped (barred) from denying the truth of the deed. The doctrine may only be invoked in a suit arising out of the deed, or involving a particular right arising out of the deed.