Who cannot sign on behalf of a principal signer unable to execute a document?

The role of a notary public is to serve as an impartial witness to the signing of documents. Their primary responsibility is to verify the identity of the signers and ensure that they are signing voluntarily and with understanding of the document's contents. A notary public cannot sign on behalf of a principal signer who is unable to execute a document because that would create a conflict of interest and potentially undermine the integrity of the notary's role. The notary must remain neutral and not partake in the signing process beyond their duties of acknowledgment and witnessing.

In contrast, family members, friends, and co-workers may be able to assist the principal signer in some capacity, provided they have the authority or consent to do so. However, this assistance does not typically fall within the purview of the notary's responsibilities, as the notary must uphold standards of impartiality and cannot act as a representative for someone else in the signing of a document.