Serbinski Accounting Firms

I forgot to mention that the new employer wants me to fill out a i-9 form as well.

I have accepted a job at a US firm and will be applying for TN visa shortly. I will be working at my new firm's client sites 60% of my time with all the sites being in the US. However I will still be living in Canada and working from home for the rest of this time. At no time will I be working for a...