Serbinski Accounting Firms

Thanks. What other stuff do I need to attach if doing MFS with 1040NR? What information goes in the 1040 statement? Is schedule A and OI required?

I moved to canada in march of 2021 and continued to work remotely on US payroll until mid April. Last paycheck was received in may. I started working in Canada in May and received some dividends in US trading account during that time. I moved these stocks to a canadian firm thereafter where it conti...