The marriage hasn't been over. They have not been legally separated or divorced. Sneaky in the sense that she is a citizen from a visa exempt country while he was not. He has hidden the entire matter that he has been on waiting for the past two years after his medical exams for Canadian PR from my sister and the family before the wedding and only disclosed it after he contacted CIC and CIC asked to submit proof of marriage and her details. Also even though my sister has been provided a dependent PR visa and COPR the husband never provided her the document and just went out of touch but hasn't even divorced or filed for it. That is why she is thinking that the whole thing was quite sneaky since so many things were not disclosed to her and the fact that COPR document was never prpvided. How can my sister know that he hasn't cancelled her COPR? Is it possible to prove everything to the immigration? My sister helped him in writing the spouse questionnaire and has the entire file which she made while helping him for application purposes.
He left her 6 months ago, cut contact and moved to a different country. Safe to say that the marriage is over.