回复：如何替我妻子办绿卡

各位专家，老师，我最近刚拿到绿卡，我妻子现在在加拿大，请问替我妻子申请绿卡的步骤是怎样的？我是否先要先替她申请 immigrant visa petition，等得到批准后她再在加拿大申请 immigrant visa，
-Correct.

之后进入美国后再递交 I－485？
-Not need if she will get the immigration visa in Canada. If she choose to enter US as a visitor and then file I-485, she has to enter US before you file I-130. Then, she has to keep her status valid until the priority date to be current to file I-485. So, you have to think how she can keep her status for such a long time.

因为她拿有加拿大护照，可做为visitor直接进入美国，请问她可以先呆在美国，然后再申请签证吗？
-After you file the I-130, she may not be allowed to enter US as a visitor due to her immigration intent.

谢谢您的咨询和帮助