It's probably unlikely anything too bad would happen excluding natural catastrophes but why take the risk if the profit potential isn't there?

Subject To isn't by it's nature fraudulent, it's just the hammer the attorney will use to try to win his case.

I plan on mailing the letter certified and I wanted to know do landlords also call the tenant as a courtesy to let them know about the letter. 

Functionally, it operates as a 2-story home since the downstairs area has multiple windows in each room and plenty of natural light.

Naturally, he made a cool $1k!

Any comment made about a positive experience with him has been from an account with little to no information in it, or of some other suspicious nature.

Be active, transparent, and provide helpful insights and leads will naturally find their way to you.I couldn't agree more.

Then tell us the nature of your remaining questions and concerns as to each remaining aspect, so people can have intelligent, focused, SHORT, conversations with you on each issue you present. 

This influx of workers will naturally drive demand for housing, retail, and other services in the surrounding areas, especially in smaller towns and cities that haven't seen major growth in decades.

What I do not control is the natural level of rents in any given market at any given time.