I got my 485 RFE asking for my previous I-20 forms FRONT AND BACK to prove I have never been out of status during my school time. I made copies of all of the I20s that were ever issued to me, single-sided. But my lawyer said the "FRONT and BACK" means they have to be copied double-sided, single sided doesn't meet CIS requirement. Is she overly careful? Plus my original I-20 was printed single sided.