Hello. We just went through the interview Mid-July. We had sent a certified copy of our marriage certificate ahead of time to his mama just incase and it was requested of us to upload since I am a co-sponsor via CEAC. They only asked her for her original birth certificate. What we also did, was send copies of all of the financial documents in sealed envelopes to her and told her not to open unless they asked for it. They never did. She will bring them back to us. We didnt wan’t to share either.