急！请教皮匠和各位大师:Will his I-485 application be invalid and he needs t naomama2008-04-11 04:34:58

My statuses: I-140 approved in 2007; I-485 pending and fingerprinting with my son and wife in 2007 in USA. My son is a senior college student, F1 holder and Canadian. This year he will go to UK for a special study project which belongs to the college study program. My questions: 1) Will his I-485 application be invalid and he needs to re-apply I-485 again if my son leaves USA to UK? 2) How to solve the problem, filing the I-131?

Thanks,

naomama

His I-485 remains valid if he leaves US with AP - 回复：急！请教皮匠和各位大师