You should be able to find out whether permits were pulled for the work. It would be good to know that.

That is on our list already. We are somewhat skeptical the landlord or the contractors even filed for a permit—derspatchel and ratatosk had months of work done on the house they live in last summer before it was discovered the landlord had never obtained a permit and a stop-work order was slapped on their front door. It's still there.