Estoppel prevents a person from denying or disputing a fact that they have previously acknowledged or asserted to be true. Specifically: - A person who intentionally misleads another into believing something is true, causing them to act based on that belief, cannot later deny the truth of that thing. - A tenant cannot deny their landlord's title to the property at the beginning of the tenancy. - Someone who enters property with permission from the person in possession cannot later deny that person's right to possession. - An acceptor of a bill of exchange cannot deny the drawer's authority to draw or endorse the bill. A bailee or licensee also cannot deny their bailor/lic