taxation of non-resident canadian with canadian contract

[JJDD]

Hi Nelsona, I now fully understand. My confusion was that I erroneously thought that "Canadian sourced income" meant "income payed by a Canadian payer". With this corrected then it is all clear now. Thank you for your patience.
PS. the delay of 2 months is because i am making progress in getting the work but i am not there yet, and i still had some questions