The Board shall obtain at least two (2) real estate appraisals by appraisers having a MAI designation reflecting the fair market value of any real estate to be purchased for use or erecting a school or a school facility or related school facilities or any other purposes authorized by law; in the event the MAI designated appraisers take longer than 60 days, we recommend the waiving of the MAI designated appraiser and obtain a State certified appraiser to complete appraisal within 60 days; the Board may authorize the purchase of land provided the purchase price does not exceed 5% over the average of the two (2) appraisals.