CONVERTING SINGLE FAMILY TO 2 FAMILY - NEW PROVIDENCE AREA NEW JERSEY

[Carlos Albarracin]

Hello all, we are currently looking at a property in NJ that will need full rehab work. Previous owner purchased property about 2 years ago, but could not finish the work and left everything as is. Now, zoning map approves lot for 2 legal two family. We noticed during the house showing that there was one one gas meter, and one furnace. Would anyone happen to know who would be responsible for adding the other gas meter? (City or Contractor). Also are there any other permits or fees that I should be aware of when doing this? I appreicate the help in advance