http://www.cic.gc.ca/english/citizenship/become-eligibility.asp
To apply for citizenship for a child under 18, the following conditions must be met:
- the person applying is the child’s parent, adoptive parent or legal guardian
- the child is a permanent resident, but does not need to have resided in Canada for three years; and
- one parent is already a Canadian citizen or is applying to become a citizen at the same time. This also applies to adoptive parents.
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To become a Canadian citizen,
you must have permanent resident status in Canada, and that status must not be in doubt. This means you must not be the subject of an immigration investigation, an immigration inquiry or a removal order (an order from Canadian officials to leave Canada).