One Set of Rules for Wills and Trusts
Trust documents and wills serve similar purposes: they direct how property should be handled and distributed. Arizona recognizes that similarity by applying the same interpretive rules to both.
The rules of construction that apply in this state to the interpretation of and disposition of property by will also apply as appropriate to the interpretation of the terms of a trust and the disposition of the trust property.
A.R.S. § 14-10112This is a short statute, but it carries significant weight. It means that Arizona's body of law on how to read ambiguous will provisions, how to handle lapsed gifts, and how to determine what a person meant when they used certain phrases all apply to trust documents as well.
Why This Matters for Trust Creators
Clear language in a trust document prevents future disputes. But no document is perfect, and life changes in ways that can make even well-drafted language uncertain. When that happens, a court needs a framework for deciding what the trust creator intended.
By tying trust interpretation to the same rules used for wills, Arizona provides consistency. An attorney drafting a trust in Arizona can rely on decades of case law about will interpretation. A beneficiary challenging a trustee's reading of the trust can point to the same legal standards. And a trustee making distribution decisions has a clearer path for justifying those choices.
For families, the practical takeaway is straightforward: the same care that goes into drafting a will should go into drafting a trust. Vague language creates the same problems in either document, and Arizona courts will use the same tools to sort it out.
