The present disclosure provides systems, methods, and products for assessing collateral data, including appraisal data, and providing timely notification of any problems or anomalies identified for the collateral. A central server may access collateral data from a remote data source, apply rules to the collateral data to detect problems, and then create a notification describing the problems. The central server may rapidly transmit the notification to remote computing devices that were registered by a lender, so that the lender may act quickly to remediate the problems. A collateral viewer application that interacts with the notifications may also be provided to lenders.