You can try an ozone machine, but likely you will need to remove and replace the flooring and subfloor in that area.

If it were mine (and I were selling it) I  would use the Avocado Green on all of the walls (because it goes well with the floor tone and is retro).I would also get rid of the green grass on the sidewalk cracks and have the sidewalk power washed to as white as possible.I would also 100% finish the basement to look as polished as the top floors.The bath with the glass door fits the unit type, the other two look like 1950's refurbished baths in comparison--kind of, you have to settle for them.As far as rentals go I'd call this a class A rental, how many people want class A rentals at this price point in this neighborhood???

For those of you who house-hack a multifamily property, how do you go about sharing the kitchen, refrigerators, living area, and washing machines, etc?

Definitely the lesson here is you really need to actually have "a business" before thinking you can wash away your W2 income.

Was he properly licensed/bonded/insured?

I recently came across the water and ice vending machine business and it really intrigued me!

I recently came across the water and ice vending machine business and it really intrigued me! 

I also came up with ebike/scooter docking stations, air fill up machine, fleet and/or ride share storage. 

I added new laundry machines, added a vented microwave, replaced broken fans, replaced an old handrail, and did some other minor repairs and upgrades while living in one side.

That is all but never talked about, the burn-rate of $cash$ to run a proficient lead-machine, in generation, filtration, storage, development, conversion.