San Francisco is an example of a city that took over particularly squalid SROs, and renovated them for the disadvantaged. Landlords who intend to convert SROs may try to convince their tenants to sign releases, which may require relocation by the landlord and/or compensating the tenant. The United States Department of Housing and Urban Development subsidizes SRO rehabilitation to combat homelessness, under the McKinney–Vento Homeless Assistance Act of 1987. San Francisco passed an SRO Hotel Conversion Ordinance in 1980, which restricts the conversion of SRO hotels to tourist use. SROs are prominent in the Tenderloin, Mission District and Chinatown communities.