Comment by clickety_clack

I am a Canadian working in the US on TN status too (and yes, despite my opinion on it they call it a “status” not a “visa”). I can’t emphasize enough how light of a burden it is on employers to hire a Canadian on TN status. There’s no limit on the number of people who can come in, and it’s issued literally as you travel across the border.

The paperwork is very basic. It’s essentially just a letter signed by the employer that describes what you will be doing. I put it together myself, but an immigration lawyer can help you with it for a couple of hundred dollars if you need it. It’s issued at the border, you just tell the immigration/border guard that you’re getting a TN, then you go into the office, they review the paperwork and put a stamp on your passport. It took about 20 minutes when I did it in Toronto a couple of weeks ago.