Some of those variables are the size of the park, number of vacant spaces, the number and type of park amenities, the age of the park, underground infrastructure age and condition, park location, size of the market, city water or well, city sewer or septic, other utility sources and whether or not they are direct billed, deferred maintenance, cost of management, and more.

Some home builders are eating profits buying down the rates with the lenders to get into the 4's or 5's fixed but it comes at a steep cost many tens of thousands in fees upfront to the lender.

Only thing is other than personal finance, what other methods are there for funding, buy, rehab, rent out and hold type deals.

Otherwise they will continue to pay yearly taxes and maintenance costs, and not be able to foreclose the property as it will sit here leaking and falling apart and the mold continuing to spread.

Costs?

I was able to get them $9,000 off of the asking price, and a $30,000 concession to cover closing costs and a rate buydown further increasing their cash flow.

To break even after commissions and closing costs, I'd need to sell for at least $275k.What would you do if you were in my situation?

If you could renovate and split off an ADU or even apply to turn it into a duplex or triplex (although that will cost plenty of money with new kitchens, utilities, etc.) that could very well be worth it.

What's the acquisition cost, build out cost, exit strategy? 

BPCON will be rather costly, considering you need to fly to Mexico and the tickets start at $1739 if you are a pro member.