The department shall establish a procedure to assure that rental payments for all property which is to be used as a residential setting for specialized community residential care, be based upon an independent appraisal of fair market rental value. In cases where the department or a community mental health board desires to enter into a lease or rental arrangement for a community residential facility at a rate above the independently appraised fair market rental value, an approval process involving the department of management and budget shall determine the contracted rental payment amount.