This is the updated post to share our experience in my mom's I131 re-entry permit case.
FYI, Original post is @ http://bbs.wenxuecity.com/immigration/589552.html
Before sharing, I have two new questions would like to get your inputs.
1. is it still the case, after the fingerprints taken, applicant can leave abroad before getting case's final decision?
-Yes.
I seems didn;t find any wordings reflect this saying.
2. Could my mom go to other local USCIS office rather than the one assigned by the notice letter?
-She can go to any USCIS Application Support Center to do it, not local USCIS Office.
Even these offices are locates at different counties?
Now, please allow me to share our experience, hope may help others in the similar situation.
I did as what 863211 directed, marked "EXPEDITE" on top right corner of the form.
The packet was mailed out by USPS priority mail on 3/16/15, recieved by USCIS by 3/18/15.
According to the form fill instruction, even there in no request to submit the reason and explaination of why you need your case to be expedited, I still drafted a cover letter and the copy of our international airline ticket to show the fact.
I include my cover letter here for you as well: