You are entitled to request permission to sublet from the owner, and the owner may not unreasonably refuse such permission. Leases is an extensive subject that covers a variety of topics, including vacancy leases, renewal leases, security deposits, roommates, subletting, and more.Tenants in New York have the legal right to sublet under certain conditions. They must typically obtain the landlord's explicit written consent. Create your free New York sublease agreement and legally sublet your property. Download our template as a PDF or Word file here. FORM OF SUBLEASE (1999, revised 2011):. If your landlord agrees in writing, you can lease your apartment to another person. Responsibilities of the Tenant under the Master Lease for the duration of the. Agreement. A sublet, or sublease agreement, adds someone new to an existing lease.