The agreement usually has no end date and expires as long as any person does not violate the contract. Ordnance Locations [§ 1940.7 (b)) – The owner of a residential unit who has real knowledge of former federal or state sites in the vicinity must inform a potential tenant in writing before entering into a rental agreement. Methamphetamine contamination (§ 25400.45) – Owners are required to disclose all information about property exposed to hazardous chemicals used to manufacture methamphetamine (for more information, see the Methamphetamine Contaminated Cleanup Act 2005). Allows a tenant to rent real estate to another person for a set period of time or the remainder of the term of their contract with the lessor. .