How feasible is it for you to consider moving?
I probably would have tried to get the landlord to do more, before going over his head to the housing inspector, but this sounds like it could be a safety issue, so you have to kinda move quickly.
If he ends up with some fines or has to fix things - what's your lease like? Could he raise your rent? Or force you into leaving?
He's created some problems for himself by renting without declaring the place as a rental unit, and if things aren't up to code.
Is your insurance up to date?
