I am a US Citizen through naturalization. I have applied for GC for both my parents and they are here. I applied I130 and I485 concurrently. I recd the notice letters and my parents got thier finger printing done on 03/22/2010. My Mother's I-94 is expiring on May 25, 2010. Do I need to apply for an I-94 extension since their 485 is still pending or can she stay till GC is approved without a new I-94 extenstion. Both my parents have a 10 year valid B2 visa till 2016. Please advise if I need to apply for a I-94 visa extension.