I need to renew my Visitor Record but.....

[mk1988]

I am going to be applying to renew my Visitor Record at the end of the year and had a question. 
My fiance (Canadian citizen) and I (US citizen) are going to be married soon and will be applying for Family Sponsorship and PR for myself.
On the extension application you have to prove you are going to leave Canada... but this isn't true!  What do I do so that I don't get rejected?
Thank you!!