My wife is currently in US on H4 and got L1 (individual petition) approved with COS (as seen in mycasestatus/USCIS). Unfortunately, the approval notice (i797) never reached the lawyers. We have applied for a copy after talking to USCIS but the processing time is 5-11 months and we have a planned trip in a couple of months.
is i797 (copy or original) needed for L1 stamping interview (or) biometrics ? ustraveldocs seems to offer contradicting information ( http://www.ustraveldocs.com/in/in-niv-typework.asp ).
Has anyone attended visa stamp interview without having i797?