A lawyer needs to prepare a deed. Assuming he desires that you be a co-owner, then you need to have a lawyer prepare a deed from himself to you and himself, as husband and wife.
Non-lawyers may not prepare deeds. The only other way to get it done right is to hire it done through a title company, and a title company will have an in house lawyer do it.
Let me know if I can help. Maybe this is a good time to update wills, POA, etc.
No legal representation exists by virtue of this answer. Consult your attorney. Licensed to practice law in Indiana and Illinois. Circular 230 Disclosure: any U.S. tax advice contained in this communication is not intended or written to be used, and cannot be used, for the purpose of (i) avoiding penalties under the Internal Revenue Code, or (ii) promoting, marketing or recommending to another party any matters addressed herein.