ing that landlords have a "substantial interest in controlling the as- signability of leases"), eV, 62 N.Y.2d 930, 479 N.Y.S.2d 213, 468 N.E2cl 51 (CLApp. 1984). It makes sense for the law to permit a landlord to unreasonably withhold consent to a proposed sublet unless the parties spe- cifically ba