Find a very good lawyer. Have a look thru the following link. It is just not your application, but her's PR as well. When she landed she would have been asked is she single ? She would have said yes, that was not correct. There is a chance that you could be excluded forever from being sponsored by her
https://www.canadavisa.com/canada-immigration-discussion-board/threads/misrepresentation-on-spousal-sponsorship.538539/page-11
https://www.canadavisa.com/canada-immigration-discussion-board/threads/misrepresentation-on-spousal-sponsorship.538539/page-11