I will outline some of the regulations and hoops we had to jump through while completing this project.

If it is looking for historical appreciation data, etc, look at real estate resources that outline historic average appreciation, etc.

Your paper numbers will be higher with these properties like you outlined but you will earn every penny managing them and you just hope your paper returns are close to the returns you get in real life. 

It sounds like the prospective Tenant Buyer lacks credit and sufficient income, Not a good combination.The way to put together a successful Lease Option (rent to own) with Tenant Buyers is outlined here:https://www.biggerpockets.com/forums/600/topics/58...

I have a unique opportunity to acquire some real estate and am not sure how best to structure the deal.I’ll outline the opportunity bellow, then present the outcomes we’re looking to achieve and provide to the seller.I’ve considered some creative financing options already, but am new to this level of real estate investing and would appreciate any advice this community could provide.OPPORTUNITY- 115 acres adjacent to property we currently owned.

For him it was a major setback.Is the release process outlined in your loan docs so you can sell separately down the line?

Agencies (Fannie, Freddie, FHA, VA, USDA) outline guidelines that lenders need to follow if they want to be able to sell the loans back to the agency.

Most likely this is outlined in the park rules. 

My guess is that the lender that outlined this program and terms assumes its to be " owner occupied " and  that the terms would be much different if they were aware its actually for a  rental  scenario

Each of the 4 areas you have outlined have potential opportunity given the right deal.