448. Rights of the original tenant.

The transfer of the reversion does not affect the privity of contract between the original landlord and the original tenant1. Consequently, the original tenant may enforce the covenants in the lease against the original landlord, even though the reversion has been transferred and even though he may also be able to enforce the covenants against the transferee2. If the lease is assigned, the contractual rights pass to the assignee, and it is the assignee and not the original tenant who may then sue the original landlord