If the deal sounds too good to be true, it probably is.

INstead of just saying "no" we asked them to check with their credit card company if they offer travel insurance yada yada.. we got a 5 star review form them without giving a refund.

Tell party #1 that you have others wanting it, which is true. 

Private lender will be close to a credit card interest rate for them to finance something like that.

Highly recommend starting close to you so you can get eyes on the property if you do decide to purchase a true rental. 

Too good to be true is also a huge red flag.

Imagine investing in all new, beautiful finishes, only to discover that the drain pipes are faulty and need to be replaced—an issue that could have been identified and addressed beforehand." very true, sometimes it's like rolling a dice. 

Given that knowledge what is a fair rent increase and the true value of the park?

They tell you tha you  will get personal coaching with the best coaches, not true, mediocre at best and you only see them in Zoom calls.

Very true.