I see more and more nurses exploring this option as baby boomers continue to retire in droves with only social security to support them.

They have all been beautifully rehabbed, are in great condition, rented and cashflowing.We have just started exploring investing in Indy hence why I've jumped on this thread.  

From this data, you can utilize a website bestplaces.net that will give you a breakdown of the percentage of homes that sold, in various price ranges, for a given zip code.

@Aj Bowman- in terms of the property's market value, this can be a tricky thing to determine with vacant land (a lot of the appraisers I've talked to don't even have a firm handle on how to do it with much certainty - because in many cases, the data needed to make the determination simply isn't available).That being said, there are several things you can look at to help get you most of the way there.

From this data, you can utilize a website bestplaces.net that will give you a breakdown of the percentage of homes that sold, in various price ranges, for a given zip code.

There are usually many times when there are no new listings in my area, so random checking throughout the year tends to give me better overall data than just waiting until it's coming vacant.  

Or, do you know of any sites where I can pull the raw data and feed it into a program like ArcGIS?  

I'm exploring a little bit more everyday.

Have you explored portfolio lends who would finance future loans, removing the 6 loan limit from freddie, and removing the necessity for this commercial loan?

Thanks, @Theo Hicks, I actually came across that when I first started exploring the site and I plan to get out there for a meetup.