We have GC and want to apply GC for my daughter age 16, can she adjust her status in US using I-485 ?
Why did she not receive her GC when you did? If she has been illegally present for 9 years, you and she will have a problem with the filing once she becomes 18. You really need to seek the assistance of an attorney. It is too important an issue for a forum
GC parents apply GC in US for child under 21 (Canadian citizen, born in Taiwan)