A person who uses or occupies land by permission of the owner but has no legal or equitable interest in it. Such permission is personal to him; thus he cannot transfer it. He cannot enforce it against a third party who acquires the land from the owner. His permission can be brought to an end at any time and he must leave the property with “all reasonable speed”. If he does not do so he becomes a trespasser (see trespass). See also licence.