I have a great property in PHX that we have listed for sale, but I would be interested in running an RAL out of my house (already furnished, 5 bed 3 bath, single story ranch style home with two master bedrooms and a pool). 

We live in the front half and airbnb the private entrance 1 bedroom, 1 bath, living room (hotel suite style) back half that is separated by a door that we deadbolt.

I love your don't take crap style of how you manage your properties. 

The restaurant will have a 1500 ft2 patio as well as the 3500 ft2 indoor space to finish out the design.  

So the rent is paid, but he is disturbing the neighbors, or stealing things, or smoking cigarettes indoors or something.

With its inviting curb appeal and well-maintained landscaping, 17 Penny Lane stands as a testament to both style and practicality.Upon entering, you are greeted by a warm and welcoming atmosphere that flows seamlessly throughout the property.

You might be able to erect a shed style place for that, but that's minus insulation, electric, plumbing, finishes, furnishing etc etc etc.. $3k is fantasy land. 

Direct Energy suggests 78F (25C) for indoor summer thermostat settings, Carrier suggests 72F (22C). 

The other option is old school punch each debt in the face Dave Ramsey style. 

And the structure cannot be an older style with under-sized studs, beams, headers, etc.