G.D.
You'll have to check with the school. Each is different. My sons school was allowed to stay because it was May but they said if it was any earlier he would have had to switch. So only your own school department can answer as to how early they will allow it. If you have a relative in the same school system you can use thier address and tell them he's staying there for the remainder of the year but will be spending a lot of time at home or whatever. But it might work easier that way.