We evaluated the implementation process of Richmond, California's citywide smoke-free multiunit housing ordinance. We conducted semistructured focus groups with multiunit housing tenants, owners, and managers. Residents understood the harms of secondhand smoke but lacked accurate information about the ordinance and questioned its enforceability. They shared concerns that the city lacked cessation resources for smokers wishing to quit because of the ordinance. To increase compliance with the ordinance, tenants, owners, and managers need accurate information.