My units did not have the level of disrepair your does so I think a judge might interpret you possibly grossly neglecting or mismanaging your property from afar and be more sympathetic to the tenant than usual.In my cases the tenants were inherited free loaders and talked about small wear and tear items the judge scoffed at or dime size stains on ceilings etc.No legal advice

However if the kitchen is really old, none of the doors close right, a couple are broken or missing, the counters are stained/burned/cracked and the faucet is all rusty with some plumbing issues then do a nicer upgrade since you need to do a fair amount of work anyway to avoid getting below market rent.

No stain, No oils, No fumes.

Originally we planned to stain but it would have looked bad so we painted it the same color as the cabinets.

If the room smells strange or if you see stains or saggy walls or ceilings, have an inspector look for mold and leaks.Finding a good home inspectorLocked Doors and BlockadesAsk about any rooms that are "off limits" during your home tour, and arrange to see them later if you're interested in the house.

You will always be a sad, broken, wreck of a man, no matter how well you learn to pretend and how loudly you protest otherwise.It will happen to the point that you will know in your bones that you are a habitual failure, that no matter what you do, you will never be good enough to erase the stain of the shame of what you've been through.

Paint or Stain Grade?)

As this tenant has also been late with the rent twice before (but straightened up after fines and warnings) that the next time she would get a notice to vacate, not to mention she has been a princess for the past year AND has put a hole in the wall and stained the carpet, I'm tempted to invite her for a dose of reality elsewhere.

My gut reaction is fix it, but get more labor bids and stain the concrete in that room instead of replacing the floor.. 

I do have pets the stains are not visible on the surface and the cleaner said they could get any lingering smell out.