Any person interested as or through an executor, administrator, trustee, guardian, or other fiduciary, creditor, devisee, legatee, heir, next of kin, or cestui que trust, in the administration of a trust, or of the estate of a decedent, an infant, person who is mentally incompetent or insolvent, may have a declaration of rights or legal relations in respect thereto:
(1) To ascertain any class of creditors, devisees, legatees, heirs, next of kin, or others;(2) To direct the executors, administrators, or trustees to do or abstain from doing any particular act in their fiduciary capacity; or(3) To determine any question arising in the administration of the estate or trust, including questions of construction of wills and other writings.P.L. 1959, ch. 90, §4; P.L. 1999 , ch. 83, § 9; P.L. 1999 , ch. 130, § 9.