The landlord must approve the assignment or subleasing. The tenant must provide the landlord with a copy of the assignment or sublease agreement.Tenants Must Have Written Permission to Sublet. It depends on the terms of the original lease with the landlord; namely, whether it allows subleases. Doing this without written consent of the property owner will get you evicted. Just as quick as not paying rent (a fast and easy eviction case). The new tenant is known as the subtenant or sublessee and usually the landlord must consent to this type of tenancy. Tenants that are going out of business or need to move to a bigger space may look toward subletting as a way to relieve themselves of their rental obligation. Customer: I signed a sublease agreement that the sublesor typed up.