Technically, you need to live in US permanently. I am not sure whether you can come to work in US and go back to Canada each day permanently as a green card holder.
Reply
所有跟帖:
• 谢谢回复,拿到绿卡我会住美国,申请绿卡期间要住美国吗? -davidusa76- ♂ (0 bytes) () 04/03/2019 postreply 20:54:38
• Not need. -863211- ♂ (0 bytes) () 04/03/2019 postreply 21:23:48