You can literally find answers to all of your questions within the confines of this site.

Looking for others to share how they verifiy identities and confirm drivers license provided are real and not forged.  

Happy to connect and knowledge share if you are interested.

Having done this business mainly on my own, it would be awesome to connect with people who share similar interests and close some deals/JV with.Thanks!

I can share you my neighborhood grade map though to help identify different areas if that helps.

Some sites will just send something like no information available.    

Are flat-fee MLS sites or otherwise free listing sites like Craigslist the only options?

Aside from Bizbuysell, loopnet, crexi, and Horse & Hearth, what other listing sites have campgrounds and resorts for sale on them?

I'd also think about having someone live on site to make sure they don't come back. 

I’m going to try to stay high level, but I will also share a lot of details so that you know the full picture.Two years ago, I decided to shift my strategy from cash flow to appreciation.