California Code, Civil Code - CIV § 800.23

(a) A homeowner shall be offered a rental agreement for (1) a term of 12 months, (2) a lesser period as mutually agreed upon by both the homeowner and the management, (3) a longer period as mutually agreed upon by both the homeowner and the management, or (4) a longer period as necessary to secure financing from a conventional lending institution.

(b) Rental agreements for a prescribed term shall not contain any terms or conditions with respect to charges for rent, utilities, or incidental reasonable service charges that would be different during the first 12 months of the agreement from the corresponding terms or conditions that would be offered to the homeowner or homeowners on a month-to-month basis.