A notarized letter of authorization is a document that allows one person to act on behalf of another person. The letter must be signed by the person who is giving the authorization and notarized by a notary public. The notary public will verify the identity of the person signing the letter and will also witness the signature.
Notarized letters of authorization are often used in situations where one person needs to give another person the authority to act on their behalf. For example, a notarized letter of authorization may be used to allow an agent to sell a car, sign a contract, or open a bank account. Notarized letters of authorization can also be used to give a healthcare proxy the authority to make medical decisions on behalf of another person.