Subdividing Property with Tandem Houses, Shared Drive

Hi Everybody!

I am looking at a property that has two houses on the same parcel, one in front of the other.  I am trying to find out if it would be possible to subdivide it.  Aside from verifying there is enough room to make two lots that conform to local zoning, there is the driveway to deal with.  The village didn't seem opposed to the lots being divided, but didn't know what to do about driveway access to the rear property.  

Has anybody resolved a situation like this in the past, and if so, what did it entail?  If you have any recommendations for a lawyer or other professional that could assist with this, I would welcome them. The property is in Illinois.

Thank you for reading!

Dave