Quennell v Maltby [1979] 1 WLR 318
Court of Appeal
Basic Facts: The landlord leased a house without bank consent and later tried to evict tenants after the mortgage debt was paid off.
Issue for the Court: When can claims for possession be made?
Held: The court ruled that a mortgagee could not obtain possession for a collateral purpose unrelated to the mortgage, particularly when there was a breach of trust.
Lord Denning MR held:
Equity should prevent a mortgagee from seeking possession unless the claim is bona fide and for enforcing the security.
Claims should not be made for ulterior motives, protecting tenants from unfair evictions.