If you got conditional or temporary 2 year green card based on marriage, you will need essentially the same but updated documents you presented to CIS at your first green card interview. The documents must collectively show that your marriage is genuine; that you and your US citizen spouse are still together and wish to continue as husband and wife well into the future. Apart from documents showing common habitation and joint ownership of property and commingling of assets, sworn statements of friends and relatives that attest to your bona fide marriage are always helpful I will still suggest that it is always wise to hire an attorney if only to carefully review the documents you intend to submit to CIS. A common mistake is the belief that the good faith of a marriage is obvious to CIS officers, It is not and these officers have seen a lot of fraud and so operate on the assumption that each case is a potential fraud and so, the burden to show otherwise is up to the applicant. Some documents submitted to CIS may raise questions even if those documents were meant to show good faith of your marriage. Therefore, an attorney will help you evaluate the probative value of each and every document you intend to submit.
Answered on Mar 25th, 2013 at 3:33 PM