Hi feelingsky_cyy,
Could you be more specific on "因为母亲着急回国,所以面试官给母亲护照上盖上一年有效期的临时绿卡"? Do you need to request the temporary green card stamp after interview? Do you need to fill out any paperwork.
How do you know "申请人必须同时和受益人一起面试"? I did not see any place specify that requirement. For some reason, I cannot be in the interview as the sponsor.
Thanks