i am a dual canadian/american citizen and married a japanese girl in canada in college. i sponsored her for a canadian green card and she got it. i ended up working in the USA and have been here 12 years. she has since gotten a US green card. we have decided to return to the toronto area but have no idea about what status she can have. she still has an old canadian green card that expired years ago. we have remained married and together all this time. i don't imagine we will drive across the border, no hard questions asked. would anyone know?