FURTHER CONTEXT...I currently run my own handyman business and often take-on projects to rehab bathrooms etc.

I believe with her discounted rate I will be charged $26/month for my Quickbooks account.

Sort of split the difference.2) Offer them moving expenses and/or to return their entire deposit if they decide to move out3) Discount the rent while the renovation as going on since it will surely be an inconvenience

That shouldn’t be too hard either because the kitchen and bathroom are right next to each other only separated by a wall (would just need to figure out the hose bibs). 

If you have only 1 month supply everything sells and sellers don't have to offer much discount. 

In Texas HVAC/Heaters are one system $700 for a bathroom re-pipeI began recently upgrading my 1980s bathrooms with New Tub, New Bath/Shower faucets, and NICE, NEW tile from tub to ceiling......Cost labor and materials, $1700 per bathroom.$12K turn on large home, included new high quality carpet and full repaintHere lies the major deviation: Property type matters.....I have NO LARGE HOMES, I install NO CARPET.  

At 599 total heated square feet, the small tiny home will feature an open driveway, 3 bedrooms, 2 bathrooms, kitchen, living and dining combo, all electric, with a full size washer and dryer.

We added $40K-$50K refinishing the hardwood floors, removing wallpaper, painting walls and updating the kitchen & bathroom with new cabinets, adding granite countertops and creating a BEAUTIFUL dining room off the kitchen that was wasted space as an enclosed porch, and also added french doors leading out to a newly-built pre-finished deck we added so the new owners could enjoy their gorgeous fenced in backyard.

Collateralize it for the down payment of a discounted buy in OK / TX.  

I think that your best bet is to offer the Holder of the Contract for deed some sort of discount if they refinanced out of the contract for deed so you could get your equity, short of that I don't think you have a lot of options.