尊敬的8老師您好
請教我們（美國公民）的孩子成年未婚在加拿大工作，加拿大公民來美國的
1.成年未婚女子辦理來美國的話大概需要多長時間？
-It takes about 9 to 10 years.
辦理期間如果來美國探親或旅遊是否有影響？
-It should be fine because it takes too long for your child to be qualified for the immigrant visa application.
2.如果辦理期間孩子結婚，那這個申請是否繼續有效？
-Yes, but the category will be upgraded from F1 category to F3 Category which takes about additional 5 years in 排期 compared to F1 category. But your child's spouse and kid can immigrate into US together with your child in this case.
如果不能繼續有效，有辦法轉成家庭移民嗎？
謝謝老師的幫助，期待老師在忙中回複。
