I'm very busy with business and having time to cook healthy meals have been a challenge.  

It pays for our mortgage plus a little extra, and it's a 350 square foot room with no kitchen and no laundry facilities.

Tenant says it because when she cooks all the smoke alarms 🚨 in the house 🏡 go off.Of course I want her to put them back.What would you do ?

You have a bigger interest in it than they do.  8 years ago Amazon relocated their distribution facility that was in my town. 

Amazon is currently building a new 800k sq ft facility near the Colorado Springs Airport.

Years later, after accumulating a patina of filth, tobacco tar, or cooking grease, the ceiling was painted in latex paint, incompetently, with inadequate or no cleaning and of course no primer to speak of.

Otherwise you will find lots of problems in those facilities.

Hey Taron, I recommend Kathryn Cook-Crespo and @Kevin Stringari with Bottom Line realty. 

If the compition demands a higher refurbishment (counter tops, and cabinets) then do that, but just a refresh on this unit (from the pics) looks like paint and LVP might be enough.I'd leave the cabinets and counter tops brown (unless competition dictates redoing them).Also a daylight bulb in the kitchen of the highest wattage the fixture will hold might make the area look better when you show it.The less income the resident has, the more bulb wattage they seem to like in the kitchen (they cook at home more).Good Luck! 

One day I might take it on.The onerous eviction process where if your in Chicago or cook county in the winter your up the creek.