Contract job for a US company under TN

I'm currently under H1B with a US company but I intend to quit this company because another US company plans to offer me a contract job that I like a lot.

I'm a Canadian citizen. This contract job will be a project-by-project basis instead of full-time employee. My question is: am I allowed to work on this kind of job under TN?

My another question is: If I want to work for two companies, shall I need two separate TNs? Anyone has this experience?

Thanks.

Yes, you can work full-time, part-time or contract on a TN, assuming that the job is on the NAFTA Professional Job Series list. The TN is only valid for one employer, but you can have multiple TNs.

Yes, you can work full-time, part-time or contract on a TN, assuming that the job is on the NAFTA Professional Job Series list. The TN is only valid for one employer, but you can have multiple TNs.

Thanks axolotl. Another question? If the TN get rejected, will I still be able to entry with my existing H1B?

Up to the inspecting officer. You can't hold H-1B and TN-1 at the same time, but you can have multiple employers on TN-1.

Up to the inspecting officer. You can't hold H-1B and TN-1 at the same time, but you can have multiple employers on TN-1.

Thanks Steven. So the H1B will expire immediately on the day I get TN at the border. Since my current employer (H1B) requires 2 week notice so I may have to notify my employer two week before I can proceed to the border for the TN, it this right?

You'll need to proceed to the border to get your TN after your H-1B work is complete and before your TN work begins.

Your H-1B expires immediately you stop working for that employer, as soon as you hand in your notice, that's it. They're supposed to notify USCIS. You have a "reasonable" amount of time to leave the country, which USCIS interprets to be ten days or the expiry date of your status on your I-797, whichever is sooner.