I have serious doubts that houses renting for$500/mo (C or D class) sell for $50k each, or just a 1%/mo. of purchase price in those class neighborhoods.  

Is this a C or D area?

If you care more about cash flow, go out of state and look for class C or even section 8

If C or D it can be very risky to take on such a project.

That does not look like a screaming good deal to me, especially in a C or D neighborhood. 

There should be tons of timely, recent, and scholarly sources on Brexit you could use as references/citations (writing a paper is always much easier if you can find good sources).

Betting on appreciation is a crap shoot that I would bet on.  

4) Is there any corporations building offices or creating economic growth in any of the C+ or better areas?

D, Rule 506(c) or Reg.

Live and do something based on the present mostly with a little bit on the future of what you hope.Do not bet on anything about the future beyond what you have learned from others like the Chamber of Commerce locally about developments that has been City approved but has not happened yet.