I have seen that people have been granted U visas based on having their child abducted, so the answer is you may have a case.

No, your unborn child is not counted as a household member in your affidavit of support or on any other documents or forms.

If you are in lawful, nonimmigrant status, yes you can. If not, no you can't. Having a pending I-360 is not a nonimmigrant status.

Your medical exam is long since expired and you need a new one. You can discuss with the doctor whether you are required to get new vaccinations.

Better safe than sorry, I suggest that she does register for just in case and not have to worry about anything.

You can send a letter to ICE to report what happened. Be aware that they are not under any obligation to do anything about it.

If your ex wife was a U.S. citizen at the time you were approved for permanent residence under VAWA, then you can file for naturalization three...

Here are the State Department instructions for obtaining an apostille:...

If your mother has a green card already, she will not lose her green card based on your wife losing her job.

Once you are divorced you can notify USCIS and request to change your I-751 to a good faith waiver and not jointly filed.