There are more than a few posts on this topic.Do you have a bunch of STRs?

That should be used as supporting evidence that your building IS a two family and that the City knew about it, etc.A good Expediter will be able to help you give the right evidence and put together a package to submit to the DoB.

@Foley SchmidtWelcome to the community and be ready for a huge amount of information at your finger tips.

How should the security deposit be managed in this transition?

Built-in accounting software, keeps track of everything better and helps for tax returns at the end of the year3. multiple payment options are usually available for residents4. maintenance requests all in one area, easier to keep track of and keep residents informed of the status5.

When you do this you end up with two properties leveraged. 

I just had to provide list of equipment bathrooms parking  and hvac etc etc.. and pictures to back it up.land to building ratio  So I helped her through it and it worked out great for us.

This is a great place to learn and to connect with people so take advantage of all the great resources.

I've already found this community and the podcasts to be extremely valuable. 

What made you interested in investing in this type of deal?