回複:H1B 問題請教,急!!!
1. if H1 extension duly, timely filed, yes.
2. New company has to file H1B transfer and USCIS has to receive it before you can switch job.
3. Still can file I-129.
4. Company is free to file I-129 anytime, but you cannot choose COS in US, and must reenter with H1B visa out of US.