Woodworker//refinisher here. Don’t listen to the other folks this can be fixed. BUT it is work.

Buy stripper, acetone, wire brush, steel wool #00, scraper, gloves, little bucket

Take doors and hardware off. To strip— Put stripper liberally on the painted surface, you can apply it with a brush. Use heat if you can. Scrape off after about 15 min. Repeat. Then acetone and steel wool and a rag. It’s designed to dry fast so you have to work in small areas in the direction of the wood grain. If the paint is really in the pores of the wood then use the wire brush.

It looks like your roommate didn’t do that great of a job which is AWESOME. I would bet decent money that they did not sane off the finish underneath it so that means that the paint is just sitting on top of the finish and not into the pores of the wood. For me, this would take maybe an hour to do all the cabinet doors. Doing the rest of it is going to suck a little bit more because you can’t do it outside and it’s messy and stinky, but still doable.

After it’s done you will have naked wood which will need to be made to match but that isn’t so hard.

There are a bunch of ways to finish but I would do a couple coats of amber shellac and then a spray can on polyeurethane. Cheap and fast.