She has to take PR first - and she cant apply for that until she has be in Canada for 3 years. And the processing can cart a while as well.

So no you are not contained by any position to apply for PR in Canada. You can try applying for a guest visa, but if you say you enjoy family already surrounded by Canada, you will probably be denied, on the assumption that you will NOT return to dubai at the end of your stop by.
Go to the nearest Canadian embassy or high commission, explain your situation and ask for give support to. Don't try to cheat - ever