Mo. Rev. Stat. § 486.675: Nonattorney notaries, prohibited acts.

1. A notary who is not an attorney shall not assist another person in drafting, completing, selecting, or understanding a document or transaction requiring a notarial act.

2. Subsection 1 of this section shall not preclude a notary who is duly qualified, trained, licensed, or experienced in a particular industry or professional field from selecting, drafting, completing, or advising on a document or certificate related to a matter within that industry or field.