Worried about passing the Canadian border :/

Hello,

Me and my common-law partner are relocating to Vancouver on 13.July.
I'm a citizen of Canada. I'm afraid that her permanent visa application isn't through the process until then.
But we have planed that she first comes with me and learns English and doesn't work until the visa
is approved, anyway. So she would only be on vacation in Canada until she gets the visa. Ok i know, just doing vacation is allowed
for... let me guess, i think it was 6months in Canada, but now I'm afraid that they don't believe us in Vancouver at the border and don't let her
in because we're taking our two cat's with us and they are registered to her.

Could this cause any problems? It just would be the worst case for us if they don't let her in after landing in Vancouver.

Thank you very very much.