Serbinski Accounting Firms

I've been further researching as per usual, and I just need a confirmation now that I understood correctly.

As a Non Resident Alien , who will not meet the SPT requirements the following will apply.
1) Employer will set me up as employee
2) Employer will Withhold US Federal Taxes with each Payroll ...

Ok, Nelson please help :)

This is the exact situation that needs some further clarification.

I will be an employee of a USA Corporation ie W2 . Continuing to Live in Canada as a Resident full-time , visiting USA Customers 1-2 days a week in multiple states for site discoveries and sales calls etc ...

Thanks nelsona

But if I'm not staying in just California based on possible sales calls across the USA, is it permissible to use the Cali based address? Also would I not end up paying more taxes compared to Ontario?

I have a question , that I haven't found a clear answer on anywhere so far.
I've searched everywhere , so as a last resort I'm asking a question here now. ( I like to research as much on my own first)

Scenario
1) Canadian going to work on a TN Visa working for USA Company (HQ in California)
2 ...