Hey Hannah, Definitely check with your resort on this one. All resorts differ on whether or not they require legal marriage before they perform a symbolic ceremony. I'm getting married at Dreams Palm Beach and they don't require you to be married first so I am getting married after. So since you are Dreams Tulum hopefully they have the same rules. I feel the same way about the marriage, saying our vows to eachother is marriage. Coming back to Canada and signing papers is just legal paperwork stuff. Your day in mexico will be your wedding day. And for a symbolic ceremony you can ask them to have something for you to sign so that it looks like a real ceremony. Lots of girls do this and the guests are none the wiser!