A tenant can sublet without the landlord's permission, even if the lease says its forbidden. Yes. A subtenant can be evicted when there is no signed lease.In New York State, a tenancy without a written lease is deemed to be on a "month-to-month" basis. While tenants in rent regulated or government subsidized apartments have special rights, many rules and laws apply to both unregulated and regulated apartments. Discover how to sublease an apartment with our 4step guide. Get tips on finding a subtenant, drafting agreements, and more. The lease says you will need your landlord's permission to sublet, so I would start there. Talk to them about the situation and get their consent. Subleasing involves renting some or all of a rental property to a subtenant, often for a shorter term. Tenants generally can't sublet their unit without the landlord's consent.