If you plan to change the secure short-term rental agreement, you must ensure that these changes comply with the law. A lease, also known as a short-term rental agreement, housing rental agreement, guaranteed short-term rental agreement (AST) or rental agreement, is a contract between a tenant and a lessor. A standard rental agreement for use in the private rental sector, in which a short-term rental contract is concluded, and accompanying advice. A space rental agreement is used if you want to rent several rooms simultaneously to several residents. These and other rental and rental forms can also be purchased by legal stationery. Legal Stationers also provide rental agreements that have been carefully designed to comply with the law. It is strongly recommended that landlords only use established rental agreements to meet the relevant legal requirements. On the 30.