若他去边境重新入境,需要申请探亲签证吗?
-Canadian citizen does not need any visa, and just use the passport to enter US (equal to B2 status and normally can stay for 6 months).
因为我们一直在美国,他也是中学,大学都是在这儿上的,边境官员会不会认为他有移民倾向,而有麻烦?
-Your green card is irrelevant to your child, so no this problem.