A friend of mine is trying to marry his long time girlfriend who is on a expired visa so that she can become legal and able to work and travel. He already has all the paper work and money for the application but the issue is that even though she overstayed her visa she send her visa back to her country and it was stamped as if she returned back to her country before her visa expired but in reality she never left the states. She has proof to show that she never left the states throughout the years she overstayed. Could there be a possibility that her application to adjust status can be denied ?