A tenant can sublet without the landlord's permission, even if the lease says its forbidden. No. Unless your lease already grants consent, you will need the written consent of the landlord for a sublease.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. In New York, an original tenant has the right to sublet the property if they have permission from the landlord. The law requires the landlords permission, otherwise you would have a illegal sublet that could end up in a lawsuit. Upvote It depends on the terms of the original lease with the landlord; namely, whether it allows subleases. Shift a lease to a new tenant with the landlord's consent using a sublease of residential lease form template. Create and download your agreement for free! If I never signed a lease agreement and someone sublet the property to me without obtaining signatures from the landlord. This is a common provision in Commercial Lease Agreements, but residential tenants may need to ask for their Landlord's Consent to Sublease.