We see this all the time in property management; a resident refusing to give a copy of their apartment key to their landlord or to the building staff in the case of an emergency. In New York, it’s part of the law that the tenant should give a copy of their key to the landlord and in Proprietary Leases for Cooperatives, it notes that the Lessee (shareholder) shall give a copy of their key to the Lessor (Coop Board or representative).