If a signer appears to be under the influence of alcohol or drugs, the notary should refuse to perform the notarial act to ensure the signer's actions are voluntary and informed.
Notarizing a document for a family member is considered a conflict of interest due to the potential for bias and lack of impartiality.
A notary should refuse to notarize documents in which they have a personal interest to avoid any appearance of bias or conflict of interest.
A notary should refuse to notarize any document they believe to be fraudulent to avoid becoming complicit in a fraudulent act.
If a signer has a language barrier, the notary should use an interpreter to ensure the signer understands the document, provided the interpreter does not have a conflict of interest.