Joseph, the best method for you would probably be the MLS or sites like realtor.com etc.

While both involve finding and properly securing a site and bringing it to full entitlement, the ground-up process includes the land piece but gets way more involved and complex to execute.The full "Monty" for ground-up development needs to include financial literacy, an explanation of metrics, and how they work.

I am aware of Crexi, Bizbuysell, and Loopnet and reach out when I see something for sale on those sites.

Also do you have any info on him. i can dig up some info on him and then get an attorney to file a suit against him if oyu wanted to go that route. happy to assist in digging up info so you can give it to an attorney. note I am not an attorney but a note investor and good at finding stuff on the web

I was a bit surprised when I heard that, and someone please feel free to correct me if I'm wrong.Current BP rules  https://www.biggerpockets.com/rulesinclude this paragraph:M - No Private Message Spam...private messages may not contain advertisements or solicitations (this includes sending links directing people to your website) including copy and paste messages.

We live in Lakeland, TN 20 miles from the Blue Oval site and I recently had a new BO employee rent one of my homes with a potential to sell in the Spring/Summer of next year.

But it's right on their website its now voluntary.

First, there are small grammatical issues with their website that could indicate it might have been built by someone whose native language isn't English. 

You can find them on them on the gov't website using the property search feature.

Spreadsheets/Templates:If you don’t want to start from scratch, sites like BiggerPockets and others have pre-built templates you can use to run your numbers and track your expenses.