In order to become a non-resident of Canada for Canadian income tax purposes you must sever most ties with Canada, including your residence. Proper pre-departure planning is essential to avoid future Canadian taxation.
"This article provides information of a general nature only. It is only current at the posting date. It is not updated and it may no longer be current. It does not provide legal advice nor can it or should it be relied upon. All tax situations are specific to their facts and will differ from the situations in the articles. If you have specific legal questions you should consult a lawyer."