As a sponsor, what obligations are there toward the Government of Canada?

The sponsor and the sponsor's co-signer, if applicable, are obliged to sign an undertaking with the Government of Canada promising to provide for the essential needs of the Sponsored person(s) for a period of time following the arrival of the sponsored person(s) in Canada. The purpose of this agreement is to ensure that the sponsored family members do not become dependent on Canadian public welfare assistance. A similar provincial undertaking is required for sponsors who reside in Quebec.