1) Should we or can we ignore the current fingerprint appointment?
--no, to do it
(2) If we don't show up in fingerprint apointment time, will it have negative effect to approval of my second 485 in the future?
--你的移民诚意和你的信誉
(3) If we don't show up, do I need to notify USCIS? and how?
--可以退原来的case,到infopass上申请cancel apointment