Legalizing third apartment in triplex

[Kevin Giraldo]

Hello guys. So recently my father passed away and my mom, brother and me inherited the house that we were living in. The house we live in is in NYC to my surprise, it is still legally a duplex, although the house is actually a triplex. This was to my surprise when i started looking at the documents. Both the tenants that live in the house pay cash and my father paid for utilities in the house. I am trying to change this. I know he took cash from both of them, but i never knew he didnt have a lease written up with them. Like i said i want to change all of this. Does anyone know how I go about this?

My goal is to:

- Meter both tenants for utilities so they pay for their own

- legalize the house as a triplex.