LNO and C of O’s

I am looking to purchase a property, it was listed as a 3 family and is being rented as such. The C of O from 1930 lists it as a 2 family and a store. Can I get an LNO to make it a 2 family only or will I have to change the C of O? What kind of time and costs are we talking about?

Thanks
M

By mathewwebb |