1,拿綠卡後過去五年在海外超過四年,不是expat,還能申請到回美證嗎
-Yes as long as your green card (i.e. your permanent resident status) is still valid.
2,如可以,遞交申請後打指印之前可以離境再回來打指印嗎
-You had better conduct the fingerprinting before you leave.
3,遞交申請到打指印中間一般需要多長時間
-One to two months, but you may request expedited processing for biometrics appointment. see:
http://www.familytousa.com/family-to-usa/2012/1/14/requesting-expedited-biometrics-appointment-for-re-entry-per.html
4,非常感謝!!