Converting Brownstone to Co-op

Hi –

My husband and I are considering purchasing a 5-story house together with another couple. We’d divide the house into an apartment for each couple plus a rental. We’re having a hard time finding information about converting the house into condos or a co-op. Has anyone done this before, or can anyone recommend a good source of information on this? Our main question is how much work has to be done to the house in order to make this legal, and is it the same for condo or co-op?

Many thanks for any advice.

By lavrentia |