When filling out all of the AOS paperwork, what is the A# some of the forms ask for and should I fill out the paper work with my new last name or my current last name since I'm getting married and thus filing an AOS
If you are using your married name you can fill out and sign the forms in your married name. Otherwise use your maiden name.
The A # is if you ever had a file with Immgiration they would have assigend you an A#. If not, leave those spots blank.
Let me know if you want a good lawyer to process the papers for you!!