Am I allowed to work if my application for h2b visa is not yet approve?

Your question is a bit unclear. Are you going to work for the staffing company? You mentioned an extension of your visa. Is that the J1 you are...

Most Civil Surgeon's reports are sealed. You ought to speak with your doctor and straighten out the tetanus shot issue before forward to USCIS.

My green card expired 2 days ago and I am going to travel in 2 days, my biometrics appointment is tomorrow can they help me?

I would look up an emergency number at your USCIS center. They can usually stamp proof of your green card status onto your passport. Also, make...

I had my us citizenship interview yesterday and I passed on successfully

After passing the interview, you are required to take an oath. If you have not already completed an oath, you can make sure that your name is...

Your home country will likely have to agree on the J waiver. Factors may include how long you have been here. This process can take some time.