In theory, a landlord might have several remedies available in relation to unlawful alterations: (i) forfeiture; (ii) injunction and/or damages; and (iii) using them as a basis for challenging the right of a tenant to use the procedure under the Leasehold Reform, Housing and Urban Development Act 1993 (LRHUDA 1993). Theoretically, one of these could be used to slow down, or stop, a claim for a new lease. Forfeiture Under LRHUDA 1993, the status of a claim to forfeit raised after service of a LRHUDA 1993, s 42 notice tends to favour the tenant. The service of a notice under LRHUDA 1993, s 42 operates as a type of statutory ‘contract for leasing’. And, under LRHUDA 1993, s 56, subject to issues about entitlement, the service of such a notice then obliges a landlord to grant