The basement has some concrete that has bowed in a bit and has been reinforced with a few steel i beams.

Supposedly disputes both ways are to whom pays for certain upgrades -- ADA stuff inside vs outside, parking lot paving...Anyway it's a total mess and they fact my MIL can't speak English compounds the issue.

Investing is extremely high risk when compounded by lack of education yet everyone is encouraging others, that are clearly not ready, to take the plunge. 

The sagging ridge line is likely due to removal of a horizontal structural cross-tie of some kind, such as a collar tie or ceiling joist with purlins.2) As you walk around the exterior of the house, stop at each corner and look down the length of the wall with your face a few inches from the surface, searching for any areas that are bowing inward or outward.3) Look for exterior wall cracks, especially ones that have opened more than 1/8”, cracks emanating from the corners of windows and doors, cracks that have one side higher than the other, and ones that show signs of having been repaired but have opened again.

With multiple properties, all the potential issues compound.

It's worth noting that in most construction projects, the significant construction item is often only 30-50% of the actual material cost of installing that item - i.e. drywall sheets cost 15 bucks per but you also need corner bead, tape, screws, joint compound, sanding screens, etc to install and finish it.

I'll add my little post here and bow out.  

I do have some follow up questions.According to this article by Financial Times, Warren Buffett has generated a compound annual rate of return of 19.7%.

One offer was for full funding of project at $700K with equity financing for 10 years at 40% profit share plus loan payment @ 18.5% compound annually with decisions making power,Another investor's wasn't able to acquire full funding for the offer they proposed And the final wanted to implement their own management team with full funding.

What compounds the challenge for a market like ATL is you still look like a bargain compared to NYC, SF, LA, and even newer high-dollar markets like Seattle and Denver.