A Ontario real estate appraiser is an independent and objective third party who does not have any financial interest in the real estate transaction. A full real estate appraisal is often required by many banks and lenders to acquire mortgage financing to determine the property value. The report protects the bank from financing a property that is worth less than they have invested, and it also protects the buyer from paying too much for a home. The report will include a full analysis of comparable property sales for the same area to determine a fair market value.