Mo. Rev. Stat. § 435.445
435.445 Act not retroactive.
435.445. Act not retroactive. — Sections 435.350 to 435.470 apply only to agreements made subsequent to the taking effect of sections 435.350 to 435.470 .
(L. 1980 H.B. 1203 § 20)
Mo. Rev. Stat. § 435.445