utilities problem/natural gas problem

[Bryan M.]

I own a 3 family apartment building that has natural gas for heat. My third floor apt was occupied when I bought the house but the tenant moved and I had to do some major rehab. When I began rehab the heat was still working so I though it was from the prior tenant and would be shut off soon and then I would put the heat in my name for the time I was working in the unit, as I did with the electric. The rehab took me 2 months and the heat continued to work, the gas was still on. I called the gas company to see whos name the gas was in and they told me the apt was listed as vacant and was not turned on? this was a month ago, shortly after this I got a tenant for the unit, I told him he would have to change the electric and gas over to his name. I took the electric out of my name but did not do anything about the gas, I figured he would open an account for the apt in his name. I saw him yesterday and he said he had not changed the electric or gas and to send him the bill. I told him he was supposed to do it when he moved in and that this is unacceptable, he has to change over utilities immediately. I am not concerned about electric because the account is already out of my name but I dont know what to do about the gas? There are 3 meters in the basement. I am scared that there may be a cross meter issue that would be a huge problem. How else would the gas continue to work if the gas company is under the impression that the unit is vacant? What should I do now? How liable am I?