Cal. Civ. Code § 2924h
(b) At the trustee’s sale, the trustee shall have the right to require any of the following:
(c) In the event the trustee accepts a check drawn by a credit union or a savings and loan association pursuant to this subdivision or a cash equivalent designated in the notice of sale, the trustee may withhold the issuance of the trustee’s deed to the successful bidder submitting the check drawn by a state or federal credit union or savings and loan association or the cash equivalent until funds become available to the payee or endorsee as a matter of right. The trustee may require the successful bidder to replace the check drawn by a credit union or a savings and loan association or cash equivalent pursuant to this subdivision with a check drawn by a credit union or a savings and loan association or cash equivalent to this subdivision made directly payable to the trustee if necessary for the funds to be made available to the trustee.
For the purposes of this subdivision, the trustee’s sale shall be deemed final upon the acceptance of the last and highest bid, and shall be deemed perfected as of 8 a.m. on the actual date of sale if the trustee’s deed is recorded within 15 calendar days after the sale, or the next business day following the 15th day if the county recorder in which the property is located is closed on the 15th day. However, the sale is subject to an automatic rescission for a failure of consideration in the event the funds are not “available for withdrawal” as defined in Section 12413.1 of the Insurance Code. The trustee shall send a notice of rescission for a failure of consideration to the last and highest bidder submitting the check or alternative instrument, if the address of the last and highest bidder is known to the trustee.
If a sale results in an automatic right of rescission for failure of consideration pursuant to this subdivision, the interest of any lienholder shall be reinstated in the same priority as if the previous sale had not occurred.
(d) If the trustee has not required the last and highest bidder to deposit the cash, a cashier’s check drawn on a state or national bank, a check drawn by a state or federal credit union, or a check drawn by a state or federal savings and loan association, savings association, or savings bank specified in Section 5102 of the Financial Code and authorized to do business in this state, or a cash equivalent which has been designated in the notice of sale as acceptable to the trustee in the manner set forth in paragraph (2) of subdivision (b), the trustee shall complete the sale. If the last and highest bidder then fails to deliver to the trustee, when demanded, the amount of their final bid in cash, a cashier’s check drawn on a state or national bank, a check drawn by a state or federal credit union, or a check drawn by a state or federal savings and loan association, savings association, or savings bank specified in Section 5102 of the Financial Code and authorized to do business in this state, or a cash equivalent which has been designated in the notice of sale as acceptable to the trustee, that bidder shall be liable to the trustee for all damages which the trustee may sustain by the refusal to deliver to the trustee the amount of the final bid, including any court costs and reasonable attorney’s fees.
If the last and highest bidder willfully fails to deliver to the trustee the amount of their final bid in cash, a cashier’s check drawn on a state or national bank, a check drawn by a state or federal credit union, or a check drawn by a state or federal savings and loan association, savings association, or savings bank specified in Section 5102 of the Financial Code and authorized to do business in this state, or a cash equivalent which has been designated in the notice of sale as acceptable to the trustee, or if the last and highest bidder cancels a cashier’s check drawn on a state or national bank, a check drawn by a state or federal credit union, or a check drawn by a state or federal savings and loan association, savings association, or savings bank specified in Section 5102 of the Financial Code and authorized to do business in this state, or a cash equivalent that has been designated in the notice of sale as acceptable to the trustee, that bidder shall be guilty of a misdemeanor punishable by a fine of not more than two thousand five hundred dollars ($2,500).
In the event the last and highest bidder cancels an instrument submitted to the trustee as a cash equivalent, the trustee shall provide a new notice of sale in the manner set forth in Section 2924f and shall be entitled to recover the costs of the new notice of sale as provided in Section 2924c.
(g) It shall be unlawful for any person, acting alone or in concert with others, (1) to offer to accept or accept from another, any consideration of any type not to bid, or (2) to fix or restrain bidding in any manner, at a sale of property conducted pursuant to a power of sale in a deed of trust or mortgage. However, it shall not be unlawful for any person, including a trustee, to state that a property subject to a recorded notice of default or subject to a sale conducted pursuant to this chapter is being sold in an “as-is” condition.
In addition to any other remedies, any person committing any act declared unlawful by this subdivision or any act which would operate as a fraud or deceit upon any beneficiary, trustor, or junior lienor shall, upon conviction, be fined not more than ten thousand dollars ($10,000) or imprisoned in the county jail for not more than one year, or be punished by both that fine and imprisonment.