For those that are not familiar with “affidavits”, it is important to note that some affidavits contain exhibits as attachments. For an exhibit to be attached to an affidavit it needs to be mentioned in the affidavit. In some cases the notary would need to sign not only the affidavit but also the exhibits. How do you know if you need the exhibits notarized as well? Ask the person or organization that is receiving your document. The Notary would not know this or be able to advise you even if they did know (as that would be legal advice).
Please note that if your affidavit contains exhibits that the notary needs to sign then the notary will charge you a fee for signing each exhibit. For example an affidavit with 4 exhibits would require the notary to sign 5 times and as such the notary would charge you for 5 notarizations.