Listed as 2 family but public record has it at 3 family?

[Dolores Waldron]

Good Evening All,

We looked at a listing today in Providence that was listed as a 2 family but has 3 units, there isn't anyone living in the 3rd unit.  The third unit and the 1st unit share an electric meter however the 3rd floor has it's own gas.  If one rented it as a 2 family and just included the electric utility in the rents with the upstairs unit having a 2 levels it would be odd as the 3rd floor of the upstairs unit would have a separate gas bill.

 I was curious what all would be involved to convert it to a legal 3 family and separate the electricity?

Thanks for any advice.