A sublet allows direct landlord communication with the subtenant, unlike a sublease, where the legal relationship is between the primary and subtenant. A sublease is an agreement where someone takes over part or all of an existing lease.This type of lease involves at least three parties. In contrast, subletting is when the landlord creates a new rental agreement with a new party. Contact with the landlord. No tenant may sublet an apartment without the written consent of the landlord. We talk about a sublease when the original tenant (sublessor) rents out all or some of the space to a third party (sublessee). A sublet is when you temporarily rent out your apartment to someone else while you are still the primary tenant on the lease. In order to collect this late fee, the landlord must have included notice of it in a written lease. Find what you need to know about the federal campaign finance process.