H1b Extension

Hi Guys,

Currently, I am in USA. My H1b i-94 is getting expired on June 1 2008. My family is having H4 visa. They have not came to USA before and currently they are in India.
I am filing extension for me alone. I have the below clarifications, please advise me on this

  1. Can i bring my family to USA after i filed extension for me alone or else i have to wait for my extenstion to be get approved

  2. Once my extension get approved, do my family need to go to visa stamping once again

  3. How long it will take for uscis to approve my extension if i filled it in regular

  4. After filing my extension, can i go to India and stay there for 3 months when my extension is in processing

Note: Currently I have filed amendment which is under processing

Please advise me.

Thanks in advance

Hi Team

Any information is really appreciated.