 Tenants who do not qualify for enhanced vouchers, including all tenants in post-1973 buildings that were not federally subsidized, must pay the rent set by the landlords.That the buildings are no longer in a rent-regulation program poses a particular problem for tenants who were receiving special subsidies that may not cover the new, higher rent payments, such as subsidy programs because of poverty age, and disability.In some of the buildings, tenant associations are negotiating "landlord assistance plans" (LAPs) to implement the increases at a slower rate and to protect some of the weakest tenants.