Cal. Rev. & Tax. Code § 3805

In addition to the usual provisions of a deed conveying real property, the deed shall specify:

(a)That the real property was subject to a power of sale pursuant to Section 3691 for nonpayment of taxes which had been legally levied and were a lien on the property.

(b)The name of the purchaser.

(c)Any condition deemed necessary to effect compliance with the agreement, including, but not limited to, a condition that the real property be used by the taxing agency or nonprofit organization for the public use specified in the agreement.