My TN will be expired in May. I am thinking of going to the border to renew it. Is there anybody who has experience with Detroit POE? I heard that I have to avoid big POEs like Toronto pearson airport as much as possible. Is it the same case as Detroit POE? Is it ok that I renew it 3 - 4 weeks before expiration date? If my renewal gets denied, can I still come into the US since my previous TN is still valid? My job title is software engineer and I have a master degree in computer engineering from a Canadian university.
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