@Audrick Brown IVYellow letters come from a company called YellowLetters.It's supposed to look like someone sent a handwritten letter on a yellow note pad.You can always make your own handwritten letters on regular stationary.

The wifi hotspot will ONLY be for the IOT devices and not be used for tenant's regular internet.

We wasted months on our first rehab, trying to do all the work ourselves after our regular jobs.

If I had actually used the credit cards to charge anything (thus getting points or miles or cash back or whatever), then those charges were subject to the regular interest rate. 

Yes, they will be more expensive than your regular maintenance person, but again those will be rare.

What can go wrong here, aside from the things that can go wrong with a regular rental to a family?

He is on disability so he gets regular income every month and he has a conservator that takes care of his money and pays the bills. 

@Cynthia DockensThere are quite a few self-directed IRA and 401k providers who post regularly to these forums that you may want to check out.

I appreciate the humor although as a moderator you challenge my, "did he cross the line" decision making skills regularly. 

I have a regular job in which I make good money so affording another payment maybe possible.