A record shall be maintained by the city treasurer of all sales, exchanges and leases,
for the auditors' inspection. In addition, a market analysis is required for every
exchange or sale of real property where its value is greater than ten thousand dollars
($10,000), but less than twenty-five thousand dollars ($25,000), and an appraisal
is required for every exchange or sale of real property where its value exceeds twenty-five
thousand dollars ($25,000.00), and the lease where the annual lease value exceeds
ten thousand dollars ($10,000.00).