how long I have to wait to get responce from USCIS?

來源: 於 2008-11-25 05:13:55 [舊帖] [給我悄悄話] 本文已被閱讀：次

My attorney sent a service request for my pending I-140 yesterday.how long do I have to wait to get responce from USCIS?
My I-140 have been pending 18 months.