It depends on what the crime was; some crimes create a permanent bar to re-entering the U.S. But if this one was expunged, it does not sound serious to the extent of a permanent bar. Unless you tell me what the crime was, this is as much as I can tell you. If in doubt, consult with an attorney before you spend all the money and time on filing for your father. You should be fairly certain that he can return to the US before you take those steps.
Answered on Nov 12th, 2013 at 4:46 PM