Selling an apartment in NYC with existing tenants in place can be much more challenging than selling a vacant apartment. Yes, tenants have many rights when a landlord sells the property they're renting.Everything you need to know about how to sell a tenantoccupied rental property in New York City. (Real Property Law §227-a). 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. Answer: If you rent a home and you discover your landlord is selling the property, don't start panicking (or packing) just yet. If you have lived in your apartment for less than one year, or have a lease for less than one year, your landlord must provide you with.