For example, Pittsburg during its Steel industry boom era and Detroit from it's peak auto industry era, properties would have grown value YoY mostly.

A little context: the building is structurally sound and they have done major updates such as septic, generator, and sprinkler system, and all mechanicals are recently inspected and tagged.

I'm just trying to make sure I understand the mechanics of how this works.

He only have a auto loan with last 34 payments all on time.  

Or I could just take my car to a mechanic and they will fix my car faster and for less time & money, depending on the exact problem.

I'd look for signs of arcing around those outlets.Other things I look for are how is the foundation, cracks in the walls (assuming lath and plaster), condition of the mechanicals, depending on what the house is built on, I may get a radon test done for the air and water (near me there is a lot of ledge, so radon is an issue in most homes). 

They know it, and they are trying to stop it.What is their stopping mechanism?

She breezed through her application, has great references and credit score, had already paid her July rent/security deposit, has insurance in place, and is set up for auto-pay going forward.Thanks for your insights!

With 20 Doors I designed a management mechanism where my Wife acts as Property Management Supervisor then under her there is a property manager who manages all 3 estates with 20 Doors.

They may not be as nice as I like when I buy them but after the first round of renovations the majority of the work has been done and most run pretty much on auto pilot after that.