But beyond who should pay is actually the issue of whether or not there is a problem or if it's a fabrication.

A small number of unhappy customers is natural, because you simply can't please everyone.

I'm interested because I thought only a natural person (with a SSN) can apply for an EIN.  

How old are the collections and what's the nature of the collection account?

Notably the tenant lies about their Visa status during the application process, and also withheld employment details (as a cover up of the illegal nature of the work).

We like the physical nature of it, the steady streams of monthly cash flow, that it can provide a service to the community, and with investment it can help to improve the quality of life in the local community as well.

In my opinion there is no sucj thing as " no risk" simply becayse its the nature if the business.  

I'm sure it can be done, however its going to be a little more difficult than in a part of the country where SFH prices are naturally low.  

Every county has their own procedures and some seem to have purposely made them as difficult to navigate as possible.But don't get discouraged, once you figure it out and look up a couple of hundred probate cases, it will seem natural....

Also, naturally the age, condition, finishes and amenities (pool, fenced yard, etc.) are a factor that will cause the rent variation you're seeing.