Now, I don't expect anybody to be squeaky clean on every point, but when he doesn't return calls and emails on top of it all, what's an investor to think. 

I'd get a pressure washer and clean the driveway, that way it won't need to be painted again-let it go back to the natural colour of the concrete or asphalt.

Unless these folks are the money managers for a money laundering scheme designed to clean blocks of cash with large denominations and private party placement and don't care about 5% US Bond scrutiny (sovereign wealth comes to mind), my first thought when I saw the 3% interest rate was skepticism.  

A good handyman, contractor, cleaning team, and cleaning inspector, make a great Airbnb. - Amenities: not only for guests that stay, but for yourself!

Tidbits of what we know:It sounds like 3 program participants would stay here (potentially alone without supervision, and plus we don't know the participants yet).The participants have a highly structured day where they would leave early in the mornings (the business states that they're focused on keeping these participants very active and doing things).The business also said that the house is kept very clean, as the state can do a surprise inspection at any time.Perhaps my first question is to Jorge from the OP - did you end up renting to the company?

I would also include a weekly cleaning service of the common areas (again included in the rent, so paid for by tenants indirectly). 

Squatter has online claims to be in a gang and owns a 24 hour Carpet or flipper clean up company.

The opportunity arises after a family member, who has a clean title and owns the home outright, let the property go down the drain.

Then I pay her $35 for any manual labor like cleaning, leaf/yard clean up, painting, any easy household repairs that she is able to do. 

Easy to find cleaning crew/handyman?)