I have been renting a factory which has an existing mezzanine floor covering approximately 80--90% of our factories floor space. I have recently discovered that the mezzanine floor has not been built to code & does not meet residential or light industrial requirements. 1. Under Property Law, is my landlord required to make good any existing structures & bring them up to a level that meets code? 2. If it is the landlords responsibility to make good the mezzanine floor, do I have to remove any structures I have installed on the mezzanine while repairs take place & re-install them at my own expense?