Even if you are subletting it in violation of your lease, you still have the right to terminate the tenancy of this person. One option: talk to his landlord (the one to whom he gave notice).Tell them you were subletting and you just got notice. Tenants generally can't sublet their unit without the landlord's consent. Protect your rentals with Avail lease agreements and amendments. Subletting, also known as subleasing, involves renting out a property or a portion of it that you are currently leasing, to a new tenant. If you don't have a subletting clause, the tenant must ask for your permission, and you have the right to either approve or refuse it. Instead, they must have explicit, written consent from the landlord to do so. If you have a lease for a set term, like one year, you can sublet with or without your landlord's permission, unless they prohibit this in the written lease. Subleasing is when the person whose name is on the lease finds another person to pay the monthly rent.