Unless agreed in your rental agreement, everything you add to the property belongs to the owner when you leave the premises. For example: air conditioners, light fixtures, shelves, cabinets or manufacturing facilities. A lease that includes taxes and insurance costs in the leasing payment. The owner pays the maintenance costs. Leases are governed by the articles and common law or precedents. Most leases are subject to state laws, but leases involving the U.S. government are subject to federal laws. Generally speaking, the federal laws on rental agreements are similar to the laws of the Land. A contractual agreement where one party transfers an estate in ownership to another party for a limited period of time, under various conditions, for something of value, while retaining ownership. This list of commercial rental sections is intended to give you an overview. .