I let the booking expire and figured it was a troll.I then get another request from the same person about a month later for the same dates.

But then again I’m not too good at people management.  

Seller financing: Note for $1,350,000.00  - 7% amortized over 30 years with balloon payment after 7 years, interest only. ( I am trying to get the first year at 6% to stabilize then go to 7% remaining 6 years)Property Condition: Above average.

If you have a road maintained by the HOA then set aside for that in reserves. 

Formulate your theory then seek to prove it WRONG. 

On your tax return you would report the proceeds, subtract costs and proceeds paid to seller, then the remaining profit would be your flat fee.

If you are looking at this property from a residential and rental perspective, then it may work as long as you are willing to put your own income into the property. 

My LOT was $32,500 and then they added the FOA to cover the first 2-3 years. 

And then you argue with me saying that I don't know all the details (as in, well, these days even a man can get pregnant.)

Then, if you can trend over time you'll want to see where the "path of progress" is going/moving and attempt to buy in that path of progress to gain some appreciation in the future.