218. Who may give or receive notice.

A notice to quit may be given by either the landlord or the tenant1. For these purposes, the landlord is the person in whom the legal reversion is vested, or the person whom the tenant is bound to recognise as his landlord by estoppel2. A valid notice to quit may not be given before the commencement of the tenancy as there is then no existing landlord and no existing tenant to whom it may be given3. The notice, once given, enures for the benefit of the successors in title of the landlord or tenant giving it4. Where the tenant