Clean and simple. 

But I need to plaster one wall, put a coat of refinish on the nice hard woods and just do general clean up and paint. 

The IRS considers rental income as passive income and your W-2 income as regular income.

.  ~$1,000/night + $900 cleaning fee.  

A 203k contractor does not get money upfront and gets paid in four draws, after the work is done, so they have to front the money for the job which eliminates most regular contractors.

The 2500 PSI is roughly 17.5 MPa, and it looks like adding GFR can increase compressive strength on the order of 25%, up to 40 MPa for 'regular' concrete.

@Jonathan Bombaci I like the idea of trying to maximize the proceeds, but even if he moves out willingly I'm left trying to clean/repair/renovate then list and sell a property three states away from me. 

Have your lender call.Make your offers as clean as possible.

You could clean the houses between occupancies. 

Some houses rent for less, some rent for more, so that seems to argue for the case that section 8 subsidies won't necessarily be more "profitable" then renting to regular tenants.