国外申請のスポンサーガイドには、
Sponsors not residing in Canada must provide evidence that they reside exclusively outside Canada on the date of giving the undertaking and will reside in Canada at the time their sponsored spouse, common-law partner, conjugal partner and/or children become permanent residents of Canada. Evidence that they will reside in Canada may include one or more of the following:
letter from an employer;
letter of acceptance to a Canadian educational institution;
proof of having rented/bought a dwelling in Canada;
reasonable plans for re-establishing in Canada or severing ties to the other country.