Federal law requires that individuals receive certain information before renting, buying, or renovating pre-1978 housing. Landords have to disclose known information on lead-based paint and lead-based paint hazards before leases take place. Leases must include a disclosure form about lead-based paint. Sellers have to disclosure known informaion on lead-based paint and lead-based paint hazards before selling a house. Sales contracts must include a disclosure for about lead-based paint. Buyers have up to 10 days to check for lead.