I don't know exactly what I would do in that situation. It is a tough decision.
I am a teacher and I wanted to mention that you probably could get a waiver to allow him to continue to attend his current school through the end of the year, so it wouldn't be "illegal". We often have students move mid-year and many stay to finish out the year. We actually had a student move three weeks into the school year, and he was given a waiver to stay the rest of the year (if not more).
I got one, just incase I need it.
I asked the school district today too.
