我已是公民。 我想為我姐姐一家申請綠卡。 如何操作好一些?
-File I-130 and then, wait for Ntional Visa Center to send you instructions and just follow the instruction to do what they ask you to do.
先申請父母的綠卡, 五年後父母成公民, 再讓他們為我姐一家申請, 還是現在直接由我為我姐申請好一些?
-Up to you, you may do it now.
如果我現在就為我姐申請, 是不是他們在拿到綠卡之前不能入境?
-Only your sister can not get the B2 visa due to the immigration intent.