就是說隻要“轉H4”最終被cancel掉，就可以了是嗎？
-correct.
有沒有移民局不允許cancel的可能性？
-No, but sometimes USCIS officer may forget to cancel it and that is why I suggest you to follow-up to make sure the H4 is cancelled.
有人說，有可能H4後來批了，會把先前轉的H1 invalidate 掉，在時間上有什麽要注意的問題嗎？
-Yes, but the H1 takes more time to be approved unless you use premium processing. So, as long as you get the H4 receipt, immediately write a letter to request USCIS to withdraw it.
還有，要告訴新公司的律師嗎？還是讓lg的律師來cancel（既然是lg的律師提交的），
-Yes, had better talk to the lawyer and ask him/her to contact USCIS to cancel it.
還是最好自己辦cancel
多謝,多謝，對不起問題太多，最近真的是焦頭爛額。。。。
