If you're well-off, dress well, and driving an Audi, then you should probably spring for a lawyer instead of taking immigration advice from a hotel manager in Juarez.
You cannot file the waiver until the k-1 is denied.
It is not opinion that you are currently breaking immigration law in Canada. It is a fact. You have openly admitted this fact and you are even concerned about deportation. Your current situation makes giving you advice difficult because you can not go about the process the way it was intended. If your presence were legal in Canada, you could get married there and tons of people here to help you on your journey with a CR1. (should you have decided that route)
Even for the K1, you are having to conceal where you have been living for the last 3 years
What part of breaking the law are you not getting here?
You even asked for advice on how to get around your situation because you were concerned.
You have asked for advice and you have been given it. No one here on VJ condones active neglect of laws.
If you want to commit perjury by willingly and knowingly conceal information vital to your application, that is your choice.
No one here is going to offer advice on how to do that.
Good luck with your decision.