I would contact the owner, take some pictures too, and ask him when he thinks the work will be done as it seems to have been stalled.

Just be inquisitive, not demanding or anything. Tell him you cannot get any definite answer from the PM, and was wondering when they can start using the kitchen again.

The PM maybe telling him a story about the job, his level of skill to do the job, or the cost. Do not get upset with anyone until you get no where or they become hard to reach, or other behaviors of making this turn more into a nightmare.

You should also be keeping an eye out for a new place as the owner may want to fix things up to sell and you would be at a disadvantage in finding a place.