New Jersey Statutes Title 2A. Administration of Civil and Criminal Justice 2A § 16-55

a. Ascertain any class of creditors, devisees, legatees, heirs, next of kin, or others; or

b. Direct the executor, administrator, trustee, guardian, receiver, assignee for the benefit of creditors, or other fiduciary to do or abstain from doing any particular act in his fiduciary capacity; or

c. Determine any question arising in the administration of the estate, trust, or guardianship, including the construction of wills and other writings.