Breaking a lease means to end a lease before its termination date. A lease is a binding contract between a landlord and a tenant.Edit, sign, and share maryland apartment lease online. No need to install software, just go to DocHub, and sign up instantly and for free. Complete agreement in full with signatures from both Overtenant and Subtenant. Breaking a lease means to end a lease before its termination date. A lease is a binding contract between a landlord and a tenant. Subletting is when thirdparty rents or "subleases" the property from the original tenant. The Guide explains what you should know when applying to rent, living in a rented property, and dealing with the end of a lease. Tenants of residential property should prepare a sublease agreement if they are seeking to sublease a room or the entire apartment or house to a third party.