(a) This article applies to:
- (1) A fiduciary acting under a will or power of attorney executed before, on, or after the effective date of this article;
- (2) A personal representative acting for a decedent who died before, on, or after the effective date of this article;
- (3) A conservatorship proceeding commenced before, on, or after the effective date of this article; and
- (4) A trustee acting under a trust created before, on, or after the effective date of this article.