Have you guys ever sublet an apartment for the summer without your landlord knowing ? It states in my lease that I cannot do so.Even if you are subletting it in violation of your lease, you still have the right to terminate the tenancy of this person. It depends on the grace of the landlord. You are entitled to request permission to sublet from the owner, and the owner may not unreasonably refuse such permission. Generally, a rent controlled tenant who is not occupying an apartment pursuant to an existing lease cannot sublet the apartment without the owner's written. This article provides information about the rights and responsibilities of Landlords and Tenants for apartment and home rentals. If you have a lease for a set term, like one year, you can sublet with or without your landlord's permission, unless they prohibit this in the written lease.