454. Liability of assignee after further assignment.

Since the liability of the assignee of a lease depends on privity of estate, such liability ceases as soon as the assignee further assigns the land except as regards rent accrued due and breaches of covenant committed prior to the assignment and while the lease was vested in him1; and the assignee is entitled to avail himself of this principle in order to escape liability even though the new assignee is a person of no substance who may not be worth pursuing2. An assignee is also not liable for breaches of covenant which occurred before the assignment to him3.