Commercial lease forms are official legal contracts used to lease commercial properties. Most commercial leases are customized and specific to the property; standard commercial lease forms are generally not used. Commercial lease forms are different from residential lease forms, which are used to lease apartments and houses where the tenants will live in the property. In a commercial lease, the tenant, also called the lessee, leases the property for commercial use, such as operating a specific business on the premises. The ﾓpremisesﾔ is clearly defined in the lease form and may or may not include common areas such as bathrooms or parking lots. Landlords may insert clauses into commercial lease forms specifying how the property can and cannot be used. Commercial leases are often negotiated before terms are agreed upon, and prospective tenants often obtain legal advice before signing a commercial lease form. A lawyer may look over the lease, and if it is deemed unacceptable, negotiate the terms of the commercial lease.