Abstract: A computerized method and associated computerized apparatus and product by process for determining a default risk for a given real rental property, comprising: providing computerized property data for a plurality of real rental properties comprising at least a rental price and a square footage for each said real rental property in the plurality of real rental properties; and via a user interface and computerized processing and computerized storage: calculating a rent per square foot for each of said plurality of real rental properties, including the given real rental property; calculating a property gauge score for each real rental property in the plurality of real rental properties including for said given real rental property; and determining the default risk for the given real rental property by comparing the property gauge score for the given real rental property to the property gauge scores for the remaining real rental properties in the plurality of real rental properties.