I'd be very cautious about when you open the walls because I have found many places that have.

If you did - there is a potential to save on self-employment taxes.An alternative to tax savings is to open up a retirement account/HSA and make contributions.

Why not open your own office and offer the services.

If PITI is less than the fair market rent value - then it is a non-deductible personal property, opening a large can of worms.Finally, if it is to be an LLC property, you will be a part-owner, with various implications for estate planning and family dynamics.I can think of some other issues, too.

I️ believe it was spartan invest (turnkey company in Alabama) who openly stated they made about 17k on a 83k purchase.

My goal is to house hack with my first investment property, but I'm open to going other routes if they make sense.

As of now I’m interested in single-family rentals but my ears are open to the advice of others. 

The house is already clean, it is open for you to have access to it." 

He doesn't have a mortgage so he may be open to a seller financing option as well.

1) standardize to one battery type for your power tools 2) impact driver 3) fluke multimeter