A notarized letter includes the state, county, date, name of the notary, explanation of the method of verification, verified signature and official notary seal. The notary's seal includes the date, the name of the notary, the state where the person is licensed as a notary and when his commission ends.
The document must be signed in the presence of the notary. Notaries verify signatures by using their personal knowledge or checking the identification of the person signing the document. Generally, the notary information appears at the end of the letter.
A notary may be necessary for documents such as trusts, deeds and affidavits.