Turning a Duplex into two separate condos or townhouses

[Kyle Pierce]

I have been working with a seller to purchase his duplex, however the only way I see it working is if I can purchase the duplex then convert it into two separate condos/townhouses. The duplex is in salt lake city. Does anyone have any experience with this? Does it just depend on the zoning? It is currently a legal duplex. Is this something I need to just call the county on? Is it as simple as going to an attorney and have him draft up some documents thats allows me to sell them individually?

Thanks!