Usually, the best way to evaluate the potential rent of an income producing property is to analyze the most recent leased properties in the neighborhood during the past 6 months. We can email you the data to give you an idea of potential rental income. The following website has also made things a lot easier where after you input the property information, it will generate an instant report with all the information. http://www.rentfaxpro.com/ If you create an account, the first report is free.
Here is a Sample Report: RentReport