May I have a co-signer?
Your spouse or common-law partner may help you meet the income requirement by co-signing the sponsorship application. A common-law partner is a person who is living with you in a conjugal relationship and has done so for at least one year prior to the signing of the undertaking.
The co-signer must:
meet the same eligibility requirements as the sponsor;
agree to co-sign the undertaking;
agree to be responsible for the basic requirements of the person you want to sponsor and his or her family members for the validity period of the undertaking.
The co-signer will be equally liable if obligations are not performed.
If your co-signer is a common-law partner, you must submit the Statutory Declaration of Common-Law Union (IMM 5409).