Sponsoring parents immigration: Only have Co-signer's NOA for the last 3 years

[qingqing8866]

Hi,

I am sponsoring my mom to immigrate to Canada,my husband is the co-signer.
However, as I only started living in Canada in the end of 2012 (through spouse immigration sponsored by my husband), I don't have any tax return files for 2011 and 2012.
My husband has his NOA for the last 3 years to prove his income meets the minimum income requirement.
But, will immigration Canada refuse our application because the lack of my tax return files for 2011 and 2012?

Thank you very much...