Section 52.18 - Authorization and witnesses(1) An adult with a functional impairment and his or her supporter entering into a supported decision-making agreement must sign and date the agreement in the presence of 2 or more subscribing witnesses or a notary public.(2) If the adult with a functional impairment and his or her supporter choose to sign and date the supported decision-making agreement before witnesses, the attesting witnesses must be at least 18 years of age.Added by Acts 2018 ch, 345,s 1, eff. 4/18/2018.