Be prepared. Take a copy of your complete application and all original supporting documents. An interview is normal. However, you may want to consider the assistance of an experienced immigration lawyer who can accompany you to the interview. The purpose of the interview is to determine if you are married for immigration purposes. Good luck.
Applicants don't always get a letter asking for evidence. What you sent might be enough for the officer, or they might give you a request for evidence at the interview. During the interview, you can show them other documents that you didn't already submit. Bring the originals of all the documents you already submitted, as well as any extra documents that show proof of your marriage.
The information offered is general in nature and not meant to be relied upon as legal advice. No client-attorney relationship is created through this information. Please consult an attorney prior to making legal decisions.
Each Non-jointly filed I-751 is routinely scheduled for an interview.
You will find the list of most of the documentary proof needed needed on your old Form I-485 (the first green card) interview.
Best to have attorney prepare and accompany you to the interview.
Behar Intl. Counsel 619.234.5962 Kindly be advised that the answer above is only general in nature cannot be construed as legal advice, given that not enough facts are known. It is your responsibility to retain a lawyer to analyze the facts specific to your particular situation in order to give you specific advice. Specific answers will require cognizance of all pertinent facts about your case. Any answers offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship.