In short, he could simply not return the money or the profit by saying that he had reasons of force majeure, without clarifying any additional details.

Keep in mind this is sponsor-provided material, not something that the site discovered through research, nor verified. 

If any of your properties are discovered by City officials to be unregistered, you can receive an administrative citation for failure to register; this penalty can cost $100 or more per property.

The quaility of old existing units, and the ability of the long term population to pay new rents, blended with an influx of small high end mill conversion units is simply not balanced.

I found simply raising rent to the max allowed is better than an eviction they move with out all the fuss  :)

What I'm seeing in the industry as a cautionary tale for you is that simply the reputation of the company is not going to necessarily carry the day.  

I see some of the states that are still stuck in the 1800s using title abstractors taking a week two weeks.. the folks that are local simply dont know any better as its just SOP for them.

Even worse, some job sites have potential mold growth internally.I have discovered that most of their current job sites appear to have been abandoned or close to being abandoned.

Simply making more calls doesn't guarantee money. 

With broad, high-level criteria, you may be able to easily cross of a number of neighborhoods where the numbers simply do not make sense (assuming you already have your buy box nailed down).