A restaurant rent lease is the agreement between the landlord and restaurant owner covering the rental terms for the commercial property. Restaurant owners may choose to lease restaurant space if they don't have enough money upfront to buy, according to About.com.
The lease agreement is a legally binding document that covers details such as maintenance responsibility, subleases, length of the lease, renewal options and rent increase terms, as described by the U.S. Small Business Administration. Restaurant owners should read the terms of the lease agreement carefully. Defaulting on any of the terms can result in losing the business or being sued by the landlord for the unpaid rent.