Does she has an EAD card? If not apply for EAD and you can apply for SSN once she gets her EAD. Fill out the I-765 request for work authorization under category (a)(9), K3 non-immigrant spouse. You will need to wait until you actually receive the EAD before legally obtaining employment as well...
Officer is Planly wrong. It does not matter what kind of AOS you are doing, H1B is still valid because it is dual intent visa. Even EAD is given the person who has one or more Pending I-485. So there is no issues Like Family-based EAD or Employment based EAD. It is just a EAD.
You can ask your Church to provide some kind bonafied letter.
Get a letter from his parents as well as your parents saying you both are married and living togther. Recent pictures of outings together
Bank accounts need not be joint accounts but indivisual accounts with same address can...
Main Reason I applied was No hassels. No time limit on travelling. No visa to many countries.
Apart From that If I want to move back to my home Country India it is easy. If I stay for five years in India I can get back my Citizenship of India.
For me they said no when I went at 8AM.
They have slabs like 8AM-10AM, 10AM-12AM. If you at the begining of the slab like 8AM they may say no. Go at around 9AM by that counter will be free. So they may take it.