With a Sublet Agreement, an original tenant can choose to create a new lease with a new tenant for part or all of their original tenancy. This means that the original tenant transfers their title of “tenant” to a “subtenant,” effectively becoming a “sublandlord.”
For example, if a tenant lives in a large house and wishes to rent out the basement to cover some of the rent, a Sublet Agreement allows them to remain in the property and maintain full responsibility for the lease. Once the agreement is in place, the subtenant can move into the basement and will treat the original tenant as a landlord.
In this case, the original tenant (i.e., sublandlord) maintains the responsibility for the lease. So, if the subtenant misses a rent payment, the original tenant must continue to ensure the original landlord gets paid. Subletting a Lease Agreement keeps the original lease in place.
A Lease Assignment, on the other hand, transfers the remainder of a lease in its entirety to another party. In other words, a new tenant (the assignee) assumes the rights and responsibilities of the original lease. In general, the assignor is no longer responsible for the lease (as long as the landlord agrees).
For instance, if a tenant is relocating for work and no longer wishes to be responsible for their lease, they can transfer the remainder of the lease to a new tenant, giving up their rights to the property. This way, they can relocate without being penalised by the landlord for breaking their lease.