California Code, Government Code - GOV § 66452.20

(a) Pursuant to subparagraph (F) of paragraph (2) of subdivision (a) of Section 66427.1, the subdivider shall give written notice within five days after receipt of the subdivision public report to each tenant of his or her exclusive right for at least 90 days after issuance of the subdivision public report to contract for the purchase of his or her respective unit in the form outlined in subdivision (b).

(b) The notice shall be as follows:

The owner(s) of this building, at (address), have received the final subdivision report on the proposed conversion of this building to a (condominium, community apartment, or stock cooperative project). Commencing on the date of issuance of the subdivision public report, you have the exclusive right for 90 days to contract for the purchase of your rental unit upon the same or more favorable terms and conditions than the unit will initially be offered to the general public.

The written notices to tenants required by this section shall be deemed satisfied if the notices comply with the legal requirements for service by mail.