Forfeiture of a commercial lease for non-payment of rent Statute makes provision for the regulation of many business tenancies: see for example the Landlord and Tenant Act 1954 (LTA 1954) which, in its LTA 1954, Pt II, makes extensive provision as to business tenancies. Notwithstanding such statutory regulation, the common law right to forfeit a lease remains in the case of a commercial lease. For many breaches of a lease, section 146 of the Law of Property Act 1925 (LPA 1925) requires the landlord to serve a formal written notice on the tenant before the landlord can proceed to forfeit the lease. However, in the case of non-payment of rent, LPA 1925, s 146(11) specifically excludes the requirement