Rental contracts are a type of agreement that is made between a lessor and renter in a lease, defining the terms that will apply in the lease as well as sealing off the agreement. Parties that plan on entering into a rental arrangement will usually create a contract, which will then be negotiated and then signed by both. The rental contract can be either written or oral, but the vast majority of rental contracts are created as a written document. Terms and conditions that are included in a legal rental contract are the property being rented, terms of payment, duration of rental, use of security deposit, and conditions of using the property. By signing onto a rental contract, both parties become legally bound to all the terms until the lease expires. Any violation of terms on either side can lead to eviction or termination of the lease in court.