With raw land, there are only a few questions that you can askSize of land, zoning, any known contamination?

. - Leave untouched as much of the remaining land as possible - both for a greater feeling of privacy and exclusivity for the resort guests and owners, as well as for environmentally responsible development.Pulling all of the expense figures out of thin air, I would pay 125mil for the property.The main concern for due diligence would be environmental contamination from previous activity - both military and research facilities.

Also if the property is older there could be asbestos or other contaminants and then demo can be more expensive because of additional regulations required.  

@Ryan McCoywhat kind of contamination is it listed as super-fund site?

This Place is contaminated, property is being monitored remotely by surveillance, all persons and belongs will be seized in xx many days...etc. 

-I didn't find out until after I'd purchased the home that this neighborhood is one of the worst Superfund sites in the US for soil contamination (lead and arsenic mostly from the old smelters).

I've flipped a lot of houses that had meth contamination in them, but this one took the cake.

On the other hand,  run away from micro-managers or those that say anything like "I'm the manager and you'll do as I say" - - these will contaminate the spirit of cooperation of your team and only give you more problems.

Visually inspect the water coming out, if it shows any sign of rust or other contamination, it's time to replace. 

It is essentially limited to drip applications because the biological contaminates have not been removed.