Have you talked to contractors about the cost to build? 

Here's a scenario I reviewed a couple of months ago where the borrower purchased a deal at $200,000 but only had an ARV of $280,000.

ISSUEThe Realtor I’ve been working with on my deal since May, has left the team.

Cost segregation? 

While it may be a long shot, my team and I work with buyers/investors who may be interested in reviewing the deal to see if we can help out here.

You mention you have no experience in these types of parks and your first deal you want to take down 100.When I was working for a GC we did a condo project for a developer who never developed a building before and he sold his company (it company) and used the entire amount to develop real estate.He ended going bankrupt because his inexperience with his experience and his designers and every mistake they made was multiplied by 150 since that is how many units there were.

If it is some kind of big deal like it is an old metal barn eyesore on a downtown city block undergoing revitalization and you're going to build a $10mil apartment building on it, if you can get the land...hey hey maybe the powers that be might negotiate something with you, with perhaps a promise you won't fight value for 10 years or something like that. 

I would make a list of all the work, and for the appraiser include the costs, so they can justify the new valuation. 

Generally in the first year or more you’ll have enough of those to not really incur any UBIT on especially when you factor in cost seg.  

Can you evaluate whether something is a good investment - use the BP calculators, build your own spreadsheet, identify what seems like a good deal to you (everyone has different criteria).