How long can I apply for the past after I get married with a Canadian citizen?

As long as your marriage relationship is true and lasting, you can apply for a visa after getting a marriage certificate. It is recommended to apply overseas (that is, domestic application) because the processing time is the shortest. Canadian spouse immigration is handled in two steps. The first stage is to process the guarantor's situation for 43 days, and the second stage is to process the applicant's situation for 7 months, which can be found in official website, Canadian Immigration Bureau.

In addition, on September 25, 65438, a new regulation appeared in the Immigration Bureau, that is, an applicant whose spouse has successfully immigrated must live with the guarantor for at least two years from the time of obtaining PR.