Enacting the supported decision-making agreements act to provide a statutory framework for adults who want decision-making assistance and amending the crime of mistreatment of a dependent adult or an elder person.

HB 2144 creates a legal framework allowing adults (18+) to formally request decision-making assistance from trusted supporters through written agreements. It directly affects adults who want help managing daily choices - like healthcare, finances, housing, or work - without needing a court-appointed guardian or conservator. The bill requires agreements to be in writing, signed by the adult and supporters in front of witnesses, and specify the type of assistance provided. It explicitly states these agreements cannot override existing guardianship or conservatorship arrangements. The law also amends mistreatment statutes to clarify that failing to honor such agreements could constitute mistreatment of an adult.