Remember that tax pass-through entities is the backbone of American businesses. 

I currently have a few savings/checkings account with 3 credit unions (navy federal, merck employee, and american heritage).

Though a few years old, I still like this blog by Brandon Turner:https://www.biggerpockets.com/renewsblog/2014/01/29/investing-american-real-estate-serving-us-military/After working with many Investors, most of those who are new to it find that househacking a multi-family unit works best for them.

If the money doesn't come in he doesn't loose his residence but he does have an eviction on his record which most responsible adults would like to avoid.

Although I would not dismiss the thought of putting up a flyer in a VFW, American Legion, or Eagles building.

Use the American factfinder tool and you should easily get the data u want.

As someone who grew up in Los Angeles and spent most of my adult life in New York, I too needed to find somewhere to invest outside of those cities where cashflow was near impossible.  

The current tenant is an adult family home with a handful of residents, plus the owner's family is living in the place.I'm concerned that a prospective buyer, who would likely want to convert the place to something else, would not want to deal with this building, because of the nature of the current tenant's business.

Back in the day......I mean back in 2000, my wife owned 6 adult family homes and I owned a mortgage brokerage.

Around my base, you get a lot of young male adults wanted to party and get wasted.