Cal. Civ. Code § 460.720

(A) Prior to the signing of a purchase and sale agreement or lease with an option to purchase, all
           persons selling or leasing with an option to purchase any residential premises constructed prior to 1978
           shall provide a copy of the property transfer notification issued by the Director to the prospective
           purchaser or lessee-prospective purchaser. In addition, at this time, the seller or lessor-prospective
           seller shall provide to the prospective purchaser or lessee-prospective purchaser all information and
           documentation about lead hazards known to the seller, lessor-prospective seller or real estate agent,
           including but not limited to:
               (1) Whether or not the residential premises or any dwelling units therein have been certified in
               compliance with 105 CMR 460.750(A)(1) and 460.760(D)(2), or 460.105(D)(2), and a copy
               of any Letter of Full Compliance or Letter of Interim Control which was issued.
               (2) If the residential premises or dwelling units therein have been inspected for lead hazards or
               other violations of 105 CMR 460.000, or if there has been a risk assessment performed, copies
               of any lead determination, inspection, risk assessment, or post compliance assessment reports
               concerning the residential premises or any dwelling units therein; and
               (3) Incidents of any past or present reported cases of lead poisoning in occupants, but without
               disclosure of the individual’s name.

           (B) The prospective purchaser or lessee-prospective purchaser shall be informed by the seller or
           lessor-prospective seller of residential premises constructed prior to 1978 and any real estate agent
           involved in such sale about the availability of inspections for dangerous levels of lead.
               (1) Should the prospective purchaser or lessee-prospective purchaser choose to have an
               inspection performed, the seller or lessor-prospective seller shall afford the prospective purchaser
               or lessee-prospective purchaser a period of ten days or such longer time as the seller and the
               prospective purchaser or lessor-prospective seller and lessee-prospective purchaser may agree
               to have such inspection performed, either through a lead inspection contingency clause in the
               purchase and sale agreement or otherwise. If a lead inspection is performed, the prospective
               purchaser or lessee-prospective purchaser shall provide a copy of the inspection report to the
               seller.
               (2) In circumstances where the sale will occur as a result of a foreclosure proceeding, the seller
               shall provide each potential purchaser with notification as required in 105 CMR 460.720(A) and
               shall obtain from each prospective purchaser a signed, written acknowledgment that the potential
               purchaser understands that he or she will not have the opportunity to have a lead inspection
               conducted prior to the sale.

           (C) If any real estate agent involved in the sale or lease with an option to purchase has provided the
           prospective purchaser or lessee-prospective purchaser with the required information and materials, said
           agent shall verbally inform the prospective purchaser or lessee-prospective purchaser of the possible
           presence of dangerous levels of lead and the provisions of the lead law and regulations, including the
           purchaser’s responsibility to bring the property into compliance with M.G.L. c. 111, § 197, and 105
           CMR 460.105 and 460.110, as applicable if a child younger than six years old resides or will reside
           therein. In addition, said agent shall obtain the prospective purchaser’s or lessee-prospective
           purchaser’s certification in the form of a signed, written acknowledgement by the prospective purchaser
           or lessee-prospective purchaser that he or she has been so notified prior to the signing of the purchase
           and sale agreement or lease with an option to purchase. If a real estate agent has provided the
           prospective purchaser or lessee-prospective purchaser with the required information and materials, but
           the prospective purchaser or lessee-prospective purchaser refuses to sign a written acknowledgement,
           the agent may attach to the purchase and sale agreement or lease with an option to purchase a
           statement that the agent has duly notified the prospective purchaser or lessee-prospective purchaser,
           but the prospective purchaser or lessee-prospective purchaser refused to sign a written
           acknowledgement.