Are you applying for B1/B2 overseas? Then submit DS160 and find your country's embassy/consulate website to schedule visa interview.

Yes there is in person interview for naturalization.

You should provide the address where you stayed in the last 6 months. So in this case, your U.S. address.

Are you a U.S. citizen and your parents are outside the U.S.? Then you can submit I-130 for your parents and once I-130s are approved, you will...

1. If you are on L-1A then you could be eligible for O-1A. I cannot say whether you are eligible since I do not know your qualifications. You can...

Check the below links to see if you are...

Once you find a new H-1B employer petitioner, you can come back to the U.S. on H-1B and use the remaining period of H-1B (6-year max).

You can continue working as long as your EAD is still valid.

Wait and see if USCIS sends you a notice about I-131 being abandoned. You can also check online case status if you don't hear from USCIS. If it is...

You will need to extend your EAD and AP before they expire to continue to work and travel before you get your green card.