Cal. Ed. Code § 81472
The board and the other party to the exchange each shall appoint one member of a board of appraisers, and the third member shall be selected by the county superintendent of schools. The governing board and the other party to the exchange shall agree on the compensation of the board of appraisers. The amount for the board's appraiser and one-half of the amount for the appraiser appointed by the county superintendent of schools shall be a legal charge against the funds of the district exchanging the property.
The board of appraisers shall make a report to the parties to the exchange and the county superintendent of schools of its determination of the cash values of the properties proposed to be exchanged. The report may provide for payment by one of the parties to compensate for any difference in appraised values of the properties.
Ca. Educ. Code § 81472