High turnover will absolutely kill you bottom line, it is the single biggest expense you have.

Generally, I would try and get an idea of the quality of the properties. 

Warranties, virtually no capX for many years and typically higher rents due to better quality tenants that want to be in areas that are new/safe/convenient. 

- Has safety & quality of life been affected by the population decline?

Nobody ever regreted buying a nice property in a quality location.

You may want to consider focusing on states with more investor-friendly wholesaling laws while you get your footing.As for finding buyers: if the deal is truly good, selling it is the easy part.

But if you're trying to take on more projects or avoid headaches, having someone who works for you (not the GC) is a good move. 

As far as Lance Kawaoka's claim that the reason there wasn't much response to a post about checking on the quality of a large, well-known, super-markety sponsor is that members wouldn't want to declare that they are a high net worth individual just doesn't hold water.

Customers in those areas aren't looking for quality work anyway. 

Good luck.