A system and method of detecting potential fraud in connection with mortgage loan lending, where a first group made up of a plurality of mortgage loans is utilized to calculate a representative value associated with a loan-related event. A second group also made up of a plurality of mortgage loans is utilized to calculate a predicted representative value associated with the same loan-related event. The actual and predicted representative values are compared to determine a deviation value. If the deviation exceeds a predetermined threshold, an output indicating potential fraud is generated.