i just became US citizen. My uncle(mother's brother) filed petition for my mother 9 yrs back. My father and my younger brother were indirectly beneficiaries in that petition. There are still 3 yrs pending before the visa turn arrives for that petition. However, now my mother can become green card holder in immediate category because I am citizen. can my brother accompany her , because technically he has been in line for last 9 yrs too when my uncle filed petition for my mother. And If my mother becomes GC holder now, as a son of GC holder my brother is already 9 yrs antedate. Please advise if its possible and what needs to be done to proceed in this direction?