Hello, I purchased a duplex in belleville nj feb 2025, with both tenants living there, I finally removed 2nd floor & going to renovate 2nd floor soon so i can rent it out. Im just remembering about the C of O. Should I get one for first floor only or do they inspect both floors or wait till I finish renovation. Or do I only need it for the 2nd floor, since it's the only turnover unit & get a copy of the previous C of O for the first floor since they been living there 4 years. Not sure how it works exactly