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I am sorry but it was the responsibility of you or your lawyer to object to the signing of the documents at the closing. You cannot pass that to anyone I'm afraid. If you refuse to sign, they will go to court and get an order forcing you to sign in light of a clerical error. Wish I had better news.
This is information only, NOT legal advice. No attorney-client relationship has been created. Consult an attorney in your state for legal advice regarding your issue.
Basic approach to correcting documents for clerical errors.