我們夫妻倆都是加拿大人,現在美國居住工作,準備6月份的時候換TN簽證。請問第一次申請TN簽證的時候,我們夫妻倆必須離開美國,去邊境申請嗎?
-Not necessary. If you have a legal status now, then you can ask your employer to file I-129 for you to change your current status (e.g. H-1) to TN within US. But you can not work as TN holder still the I-129 is approved. So, if you need to use TN status to work very soon (e.g. your H-1 will expire shortly), then you may just go to the US -Canada border to get the TN I-94 to work, not need to file I-129.