Hammersmith and Fulham London Borough Council v Monk [1992] 1 AC 478, [1992] 1 All ER 1, 90 LGR 38 concerned the right of one joint tenant to issue a notice to quit without the authority of the other tenant. Lord Browne-Wilkinson identified two divergent approaches from the caselaw, one based on property law and the other on contractual principles: In property law, a transfer of land to two or more persons jointly operates so as to make them, vis à vis the outside world, one single owner. "Although as between themselves joint tenants have separate rights, as against everyone else they are in the position of a single owner:" Megarry and Wade, The Law of Real