In re Marriage of Pownall

Arizona Court of Appeals enforced a prenup despite the challenging spouse claiming she lacked knowledge of the other's business assets — holding that Arizona's UPAA allows parties to waive full disclosure if they have adequate knowledge of the other's finances.

Why this case matters

Pownall is the controlling Arizona authority on what counts as "adequate knowledge" of a spouse's finances. The case sets a relatively forgiving bar for Arizona prenup proponents, but the corollary lesson matters too: spouses who voluntarily stayed ignorant of the other's finances during the engagement cannot resurrect that ignorance to defeat the prenup years later.

The facts

The Pownalls signed a prenuptial agreement before their Arizona marriage. The husband owned business interests. At divorce, the wife sought to invalidate the prenup, arguing she had not been informed of the full extent of the husband's business assets. The trial court agreed and invalidated the agreement. The husband appealed.

The holding

The Court of Appeals reversed. Under Arizona's UPAA, the challenging spouse must prove either involuntary execution or (a) unconscionability at signing AND (b) lack of fair and reasonable disclosure AND (c) no waiver of disclosure AND (d) no adequate independent knowledge. The court found the wife had sufficient knowledge of the husband's finances to satisfy the "adequate knowledge" prong — even without a formal disclosure schedule.

What it means for you

• Arizona's UPAA disclosure requirement can be satisfied by adequate independent knowledge — not just formal disclosure.
• A spouse who knew or could have known about the other's finances cannot later claim ignorance.
• Formal sworn disclosure schedules are still the best practice, but their absence is not automatically fatal.
• The UPAA standard is conjunctive: the challenger must prove every element.

Primary source

The full opinion is available at: https://caselaw.findlaw.com/court/az-court-of-appeals/1295013.html

Arizona prenup law in context

Arizona prenups are governed by Ariz. Rev. Stat. §§25-201 to 25-205 — official statute text. For the full cost breakdown, attorney rate ranges, and procedural requirements, see the Arizona prenup cost guide.

To check whether your specific situation has the kind of risks In re Marriage of Pownall identifies, take the 60-second prenup quiz — it applies Arizona-specific rules to your answers.

A note on legal citation

This page summarizes a published court opinion for educational purposes. We aim for accuracy but recommend reading the primary source linked above for the controlling text. Court opinions can be modified, distinguished, or overruled by later decisions; for current law, consult a family law attorney licensed in Arizona.