He can no longer make a claim on his roof, or any damage that could be caused from an issue due to the roof, his carrier has the option to non renew his policy at renewal (this happens annually) and should he go looking for another insurance provider the new provider will have the data about the claim and know that the roof was not replaced which lets the new insurance company know a few things. 

Ohio, for example, has a nice online system that lets you look at oil and gas well data, which includes production, type of well, name, etc.With oil and gas, you ought to consider an attorney.

It has improved a lot as their data and algorithms have both improved. 

Similar situations happen with contracts which tie up the property and prevent the homeowner from seeking additional methods of selling.Add all that up and combine it with the fact that it's super easy to just get a RE license, allowing that person to have better access to real estate sales data and to legally accept commissions for helping people sell, and I just don't get why people even bother wholesaling.  

As suggested - Zillow, Redfin, Trulia, County Websites and good old google searches can be used to get the data.

Podio is a great tool for your data management and the integration possibilities to other 3rd party apps is nearly endless; Globiflow, Zapier, Gravity forms, Webmerge, Signnow etc

And technically you are investing in real estate so you can still geek out at numbers, tends and data.

You can also look up the tax assessor's data.

The reason the area peaked my interest is because of Austin Peay University, along with the new and upcoming Google data center.

Stating that the agent would have driven all day for 500$ is simply inaccurate.