Apartment Lease forms are used by property management companies that manage apartment buildings and communities. Apartment leases are typically custom designed because they need to include language that is specific to the shared spaces in the apartment building. If you are a landlord or property manager who is managing individual residential rentals(single family homes, duplexes, vacation homes), you may want to check out the residential lease instead. This form is free, simple to use and available in state specific versions.