As stated by National Notary Association, the notary public is an official, appointed by the secretary of state to serve the public as an impartial witness in performing official fraud-deterrent acts related to the signing of important documents.
As a duty, the notary screens the signers of particularly sensitive instruments (property deeds, wills, and powers of attorney) for their true identity, their willingness to sign, and their awareness of the documents that they are signing.
Being impartial is more of a duty at any notary office. If they have a personal interest, they are duty-bound not to act in such situations. The general public trusts the notary's screening not to be corrupted by self-interest.
Furthermore, the notary also should stay impartial and should never refuse to serve a person due to race, nationality, religion, politics, sexual orientation, or status in the society.
Being official representatives of the state, the notaries certify the proper execution of many documents of private citizens (real estate, grant powers of attorney, establish a prenuptial agreement, or perform the multitude of other activities that enable our civil society to function).
The notaries act as a bridge of trust between strangers in business transactions and ensure that the critical document is authentic and signed impartially. This trust enables the sensitive documents of commerce and law to be exchanged between strangers with full confidence in their reliability.