A Pennsylvania sublease agreement formalizes a rental arrangement between a current tenant (sublessor) and a new tenant (sublessee). Sublease Agreement: A sublease allows an existing tenant to rent out all or part of the rental unit to another party.A Pennsylvania sublease agreement allows a tenant to lease their unit to a third party to the lease agreement for a set period of time. A sublease agreement is a legal document that permits a tenant to rent out their property to another person, known as a subtenant. This agreement is to sublet real property according to the terms specified below. Edit, sign, and share Application for Sublease - Pennsylvania online. No need to install software, just go to DocHub, and sign up instantly and for free. Tenants may be able to sublet the rental unit if they get permission from their landlord. Use this template to rent out a property (or just a room) when you're already renting the property from another landlord. If the lease prohibits subleases, tenants cannot sublet without consequences.