A system and method for analyzing a subject appraisal detects discrepancies and determines likely causes. This is done by accessing several data structures which correspond to appraisals that each contain data regarding property characteristics of a particular property. Data for different appraisals is then compared according to one or more rules. Depending on the result of the comparison and in light of the rules, a message, flag, or warning may be generated. In this manner, possible instances of fraud or misrepresentation may be detected.
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