Why would a man hire a criminal defense lawyer for a divorce?  marriage of 9 mos/separated 2.5 years.?:
I don't know - I always call my electrician to help fix my plumbing.

Perhaps the defense lawyer is more of a general practice attorney that works on many different kinds of cases.  Or, perhaps he (or your husband) is an idiot.

Worst case scenario - he's trying to save the ability to claim inadequate representation if you kick him around in court.