It’s always wise to collect data from multiple sources - just make sure your making apples to apples comparisons (bedrooms, lot size , school districts etc.)

If you get a bad apple the housing authority will make it hard for you to get them out.

You mentioned Charlotte, Orlando, and Vegas as being popular, but with these being so different FROM each other, I don't feel these are apple to apple comparisons.

Not sure if they are apples to apples or not.

I will just give a little info on the place so y'all aren't hanging dry and to see if interested in this deal with me Will give more detail later if interested. 5 acres of land, small pond, in ground pool, small 3 bedroom house, two big shops/ barns with concrete flooring one has horse stalls installed and the other its just an open work shop both pretty good size.

PSF does not do a great job of going apples to apples on houses that need completely different repair scopes.Pick up J Scott's book, or "National Repair and Remodel Estimator 2015" big book to learn what materials should be costing you.

Make sure you are trying to compare apples to apples.

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. 

Thanks @Jaren Barnes.

I would say, @Ian Barnes would be able to do it for $50-$55 dollars a sg ft, your will be higher so plan accordingly.