Section 456.1135 - Application to existing relationships1. Except as otherwise provided in sections 456.970 to 456.1135: (1) Sections 456.970 to 456.1135 shall apply to a power of appointment created before, on, or after August 28, 2016, and shall apply to a judicial proceeding concerning a power of appointment commenced on or after August 28, 2016;(2) Sections 456.970 to 456.1135 shall apply to a judicial proceeding concerning a power of appointment commenced before August 28, 2016, unless the court finds that application of a particular provision of such sections would interfere substantially with the effective conduct of the judicial proceeding or prejudice a right of a party, in which case the particular provision of such sections does not apply and the superseded law applies;(3) A rule of construction or presumption provided in sections 456.970 to 456.1135 applies to an instrument executed before August 28, 2016, unless there is a clear indication of a contrary intent in the terms of the instrument; and(4) Except as otherwise provided in subdivisions (1) to (3) of this subsection, an action done before August 28, 2016, is not affected by such sections.2. If a right is acquired, extinguished, or barred on the expiration of a prescribed period that commenced under law of this state other than sections 456.970 to 456.1135 before August 28, 2016, the law continues to apply to the right.Added by 2016 Mo. Laws, HB 1765,s A, eff. 8/28/2016.