There are few reason when notary public, by law, must refuse notarizing the document:

• The notary cannot verify the identity of the signer;
• The notary has a beneficial or financial interest in the document;
• The notary is unable to communicate with the signer (person is not mentally competent to sign);
• The notary has knowledge that the transaction is fraudulent;
• The signer did not personally appear before the notary at the time of the notarization;
• The document contains blank spaces;