About B-2 extension

We plan to apply B-2 extension for my mom for two months. Please help some questions:

suppose

time T1: the time to file B2 extension;
time T2: the time when original I-94 expires
time T3: the time that the decision is made by USCIS about the B2 extension

My questions:

1. between T1 and T3: my mom is legal. She is in grace period, right?
2. usually how large is T3-T1? That is, how long does it take USCIS to make the decision?
3. When to apply for B-2 extension? My mom’s I-94 will expire in early April..

Any experience is highly appreciated.

Thanks a lot

所有跟帖： 

• 回复：About B-2 extension -Bodd- ♀ (1460 bytes) () 02/25/2012 postreply 20:25:38

• 回复：回复：About B-2 extension -flyeagle_abcd- ♂ (379 bytes) () 02/26/2012 postreply 06:01:30

• 回复：回复：回复：About B-2 extension -Bodd- ♀ (876 bytes) () 02/26/2012 postreply 22:30:31