回复：xiao bai tu等各位请帮帮回答一下几个h1b的问题。

1）h1b transfer 是不是只要拿到recipt就可以在新的公司开始工作了。
--no, you need approve notice

2）从寄出申请，一般多久能拿到recipt.
--5-10 work days, it will be sent to you, not include mail time

3) 是不是一拿到recipt, 我就不能合法继续在原公司工作了，还是等拿到h1b transfer 的approve
--No, you can work until the transfer was approved

4)我不知道如何控制何时向原公司提出离开，一般应该提前两周，但我又不知道什么时候能的到h1b transfer 的approve.....
--you can wait for H1B transfer approve, when you got approve notice, you hand in the document. But you should notice your boss you might leave when you apply the transfer, not formally inform him.