I am not looking to do it as a MTR, and I am looking more to make it a true furnished LTR (1-year lease).Maybe that's not really a thing though? 

I'm not saying you're doing this, but people will often make the mistake of looking into the highest priced rental unit and making that the "market rate" but it's often not a true comparable to the subject.

So true my Dad started a company in CA in 1980 called Cal Wrap the all inclusive DT had just come out and we only wrapped PRIVATE MORTGAGES  never bank mortgages.

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

It is true that it’s not difficult to do if you know what you’re doing, and you can make a lot of money.

That is for true commercial properties and LENDERS do not look at value that way.

To say it's safe, simple, "aaahhh banks won't do anything" is simply NOT true.

Very true.

Stay true to the niche you’re currently focused on until you start to master it.

This is true for bonus depreciation items as well.