You cannot appeal if the person you sponsored was found inadmissible to Canada because of:
Serious criminality, which is defined as having:
- been punished in Canada by a sentence of six months or more of imprisonment, or
- been convicted of an offence outside Canada that would be punishable in Canada by a maximum term of imprisonment of at least ten years, or
- committed an act outside Canada that would be punishable in Canada by a maximum term of imprisonment of at least ten years.