Normally a brief few months after having received the case filing receipt.

Fiancee petitions are currently taking more than 6 months to process.

You only need to file one I-864 and provide the copy of it with each child's I-485

A valid DL will enable you to check in to your flight and pass the TSA checkpoints.

Yes, the UAE born quota is faster than the Indian born one.

Perhaps USCIS will err and continue to process your EAD.

Depends on the local procedures of the locality in which want to get married. Inquire within.

Walk-ins often succeed in most ACSs. Have proof of impending travel on you.

Since you are in valid H-4 status the cap exempt employer can petition you for H-1B at once on I-129/H.

List "nurse" only if so licensed; otherwise caretaker or other.