想讓他們拿探親簽證來美,在美等綠卡. 這樣的操作可行嗎? -Yes. 有什麽須注意的? -File I-130 and they file I-485 about 3 months later after they enter US using B-2 visa (don't file I-130 before they enter US). 會有什麽變數?在拿到綠卡前,簽證一定要有效嗎? 探親簽證 和 I-130,應先辦理哪一個? 多謝!