It is not possible to cancel a sponsorship once the family member has landed. However, in a spousal case where the spouse is under condition 51, the sponsor can complain about marriage fraud if the sponsored spouse leaves within 2 years. The sponsored spouse can in turn complain about abuse and there is no guarantee that the sponsored spouse will actually lose their PR and even if they do, the sponsor is still on the hook for any financial assistance they received until being deported.Saga said:Hi - I don't know much about sponsor ships, but maybe you can retract your sponsorship. After all you willingly proposed to sponsor them so maybe immigration services will accept that you stop your sponsorship and in this case will cancel your family's immigration papers, PR status and oblige them to leave the country. I think that is doable, they will have to proof that they can provide for themselves (which apparently they can't). It is a drastic measure that will lead in having them expelled out of Canada but not bad if they are actually doing anything fraudulant (you need to have a case)
In this case where parents are being sponsored, there are no conditions and the sponsor is 100% on the hook for their support as per their sponsorship agreement.
The only loophole is if the sponsor is aware of the parents having lied about their background when they applied. In that case, the sponsor can complain about the parents doing that and in the case that the parents do get investigated and are found to have committed misrepresentation, they could lose their PR.