I am currently on F1 Visa and my wife is having her citizenship interview soon. I was reading the forums and realized that a lot of people have lawyers. Are the forms really hard to fill in or people are hiring lawyers just to be on the safe side? What kind of mistakes can I do to put myself in a bad situation. By the way from what I read the forms I have to send are: I130, I485, I765 and I864. Is this list correct. Also what is I485a? One last question; If I don't apply for advanced parole can I leave the country? I know I said last one but how much time it takes to get approved for advanced parole. Thanks.