儿子TD Nov. 23过期,要转H4,网上填539,还是寄去?23日前他得不到H4,还合法吗?
-As long as USCIS receive the I-539 before his TD I-94 expires, he can stay legally to wait for the H4 approval. So, it does not matter to file I-539 by paper-filing or e-filing.
As always, your expert advice is greatly appreciated. Thanks a bunch.