DHS often understands and respects education as a legitimate reason for being out of the US more than a few months at a time. It is discretionary at each entry. You should apply for the reenter permit whenever he is in the US. He also needs to be present for the fingerprint appointment, which is normally several weeks after filing. He should establish his firm intent to retain his residency in the US when filing the application. I recommend that he is never out for 180 days or more, even with the permit. DHS is getting more aggressive and also this has implications if he ever wants to naturalize.
Answered on Jun 08th, 2011 at 11:28 AM