Common lease violations include unpaid rents and electricity bills, damage to the property, and the tenant who breaks the law. With a lease, landlords can declare that they are renting a room rather than an entire unit. With a lease for rental spaces, landlords can be sure that tenants understand their rights and obligations, including rental rates, when they are due, which areas of the property they can access, and more. Use a standard lease to lease a residential property for a fixed period of one year. This agreement contains the most important and common clauses and can be used for a house, apartment, studio, apartment, duplex, townhouse, basement or mobile home. Standard leases vary by state, so be sure to check the requirements for your property. That is, once a lease is signed, the rental fee is set in stone until the end of the contract.