If they think a brand new, fully working "city" is going to stay uninhabited for long, they are too stupid to be performing "science".
Once construction starts, and word gets out, all the contractors will know, which will pass word down to the friends and families of people who know the construction workers, and pretty soon, you've got illegal immigrants moving in, homeless people moving in, people who've been foreclosed on and locked out of their own houses, i.e., basically a squatter situation, and, unless you've got a lot of guys with guns,
As soon as a major defence contractor wants to rent some time, or the military wants to do some training there (yeah they have their own, but variety is always good) those guys with guns would be sent in.
Not that it would ever come to that. Its the middle of nowhere, most houses would just be empty shells without utilities and those with utilities would only be turned on when needed. $200 million doesnt buy that many fully furnished houses, even less when its also paying for roads.
No phone or TV reception, few animals to hunt, no chance of establishing crops, nowhere to buy food.
And its private property, they have to get past the entrance security to begin with, who by the way, can have guns, tazers, mace, dogs and drive big trucks to ram trespassing vehicles.
You make it sound like squatters can just walk into any private property and security guards with just politely ask them to leave. Head down to your nearest industrial facility or warehouse with a security guard at the front gate, see how far you can run in before they physically take you down, post your results.