How can I destroy credibility of notary paper ?

I have signed a notary on landlord/tenant agreement with my correct details, but at last, I refused after reading certain points, and the person has kept the notary with him without getting it authorized saying that he will tear it outside the court, now is it possible that he can get it authorized without my presence. In that case, what are my options to prove it as false notary or wrong, as he doesn't have anything else except the details, no id or anything only my sign, name, address and father's name on the notary paper?