If you would like to sublease your apartment, you must first tell your landlord that you want to do this. While tenants in rent regulated or government subsidized apartments have special rights, many rules and laws apply to both unregulated and regulated apartments.If a landlord finds out about an unauthorized sublease, they may pursue eviction proceedings. This booklet explains many of these laws you need to know and provides resources where you can find more information about landlord and tenant issues. Simply serve the subtenant with written notice requiring her to vacate the premises within 30 days. You can buy a Notice of Petition and Petition online or at a legal stationary store, like Blumberg. The steps to sublease are: 1. Unfortunately, subletting without a landlord's permission is not legal. A holdover case is brought to evict a tenant or a person in the apartment who is not a tenant for reasons other than simple nonpayment of rent. Here is a sample sublease agreement you can fill out or use as a template.