From real estate investors to other small businesses, I talk to people daily who have no idea about the potential liability under the Telephone Consumer Protection Act ("TCPA")(47 U.S.C. 227 et seq.).There are two initial issues that can create huge problems with your suggestion.

I could get the same or higher overall ROI by putting my money in an index fund which is 100% passive.Deal #2This seems like a good deal to me at the asking price.

Whether that is staying in the family business or doing something else.

You’re running a business not a charity after all. 

It's just business.

I have never found anything he does or his business do to be shady.

Like deal killing hoops to jump through.   

I have NEVER received a call, much less outside of normal business hours.

I'm thinking of 1. find a renter 2. move out and rent my own place while searching for next deal 3. buy a new primary 2.

You also need the deal.