Turn this building into a condo

[John S Lewis]

Hello All - I bought a mixed use building that I've gotten a use variance for so that I can make it all residential.  There are 2 units.  I'm considering turning it into a condo so that I can sell each unit individually.  Does anyone have any experience in doing this?  I'm trying to gauge how to value the final product.  My choices are leave as legal duplex and rent, or convert to condos.  Any guidance is greatly appreciated.

Thanks.