I realize there is a moral issue I am having a hard time squaring about having a renter and his/her family in a potentially dangerous home, although there are no indications the home is in immediate danger.

One year it was in the ten most  dangerous cities to live in the USA.   

Darby, Pa was just ranked the second most dangerous city in America.

Never invest in any location where the population is stagnant or declining.Crime - People and companies will not move to locations perceived as dangerous.

With regard to shortage of vendors, I 100% understand that, but they should have warned you up front.If you have no cap on expenditures that can be made without prior approval, that can be dangerous.

I operate out of Nashville, TN and I'm able to provide clarity to my clients due to our continued explosive growth, job increases, and built in residence due to the large number of varied and successful businesses here. 

That seems extremely dangerous. 

It's a great theory, and when it's done right it can be great, but the danger in that method is that you're the one carrying all the risk, and relying on the company to perform.

That's the danger of leverage.

The whole thing sounds fishy as mentioned...I know that in some states you must have "scienter" (knowledge that dog is dangerous due to previous bite, etc.) to be liable.