Except as otherwise provided in this Part:
1. Application to powers of attorney. This Part applies to a power of attorney created before, on or after September 1, 2019;
2. Application to judicial proceedings commenced on or after September 1, 2019. This Part applies to a judicial proceeding concerning a power of attorney commenced on or after September 1, 2019; and
3. Application to judicial proceedings commenced before September 1, 2019. This Part applies to a judicial proceeding concerning a power of attorney commenced before September 1, 2019, unless the court finds that application of a provision of this Part would substantially interfere with the effective conduct of the judicial proceeding or prejudice the rights of a party, in which case that provision does not apply and the superseded law applies.
An act done before September 1, 2019 is not affected by this Part.