Brooklyn, NY - Converting 2 Family to 3 Family

[Donnell Suares]

Hello,

I am considering purchasing a 2 family brownstone in Bed-Stuy.  It was built on or about 1899.  It does not have a Certificate of Occupancy.  The owner has configured it as a 3 unit building.  I would like to legalize it and was wondering if anyone would be able to give me a rough estimate of the cost to convert the property to a 3 family.

It does not have a sprinkler system.  Do you know if I would have to add a sprinkler system to the whole property or just the hallways.  I have been told two different things.  I was told that since it is a pre-1943 property, sprinklers would just have to be added to the hallways.

Has anyone been through this process?  What was the time frame for completion?  Thank you for your help.

Donnell Suares