state/dennis v. Lightle

Court of Appeals of Arizona·Decided July 2, 2026·No. 1 CA-CV 25-0686 FC·Unpublished·Kent E. Cattani

Opinion

NOTICE: NOT FOR OFFICIAL PUBLICATION. UNDER ARIZONA RULE OF THE SUPREME COURT 111(c), THIS DECISION IS NOT PRECEDENTIAL AND MAY BE CITED ONLY AS AUTHORIZED BY RULE.

IN THE ARIZONA COURT OF APPEALS DIVISION ONE

STATE OF ARIZONA ex rel., DES (SIRENA SIMONE DENNIS), Petitioners/Appellees,

v.

BRIAN GREGORY LIGHTLE, Respondent/Appellant.

No. 1 CA-CV 25-0686 FC FILED 07-02-2026

Appeal from the Superior Court in Maricopa County No. FC2011-053076 The Honorable John R. Doody, Judge Pro Tempore

VACATED AND REMANDED

COUNSEL

Arizona Attorney General’s Office, Phoenix By Alejandra Valdez Counsel for Petitioner/Appellee State of Arizona

Sirena Simone Dennis, Parker, CO Petitioner/Appellee

S. Alan Cook PC, Phoenix By S. Alan Cook Counsel for Respondent/Appellant STATE/DENNIS v. LIGHTLE Decision of the Court

MEMORANDUM DECISION

Judge Kent E. Cattani delivered the decision of the Court, in which Presiding Judge Samuel A. Thumma and Judge Andrew J. Becke joined.

C A T T A N I, Judge:

¶1 Brian Lightle (“Father”) appeals from an order modifying his child support obligation. Because of anomalies in the superior court’s child support worksheet, we vacate the award and remand for recalculation.

FACTS AND PROCEDURAL BACKGROUND

¶2 Father and Sirena Dennis (“Mother”) have one child in common, born in 2011. The two share joint legal decision-making, but Father exercises no parenting time.

¶3 Mother petitioned to modify child support in July 2024. At that time, Father’s support obligation was $1,353.53 per month. Mother asserted that Father’s employment had changed and his income had increased substantially, warranting an increase in child support. In response, Father requested a reduction in his support obligation, denying a change in his own income but alleging that Mother understated her income and overstated the child’s expenses.

¶4 Father’s income, Mother’s income, and childcare expenses were disputed issues at the resulting evidentiary hearing, at which both Mother and Father testified. After taking the matter under advisement, the superior court calculated Father’s new child support obligation as $1,963 per month. The court calculated Father’s income based on the adjusted gross income shown on his 2024 tax return (intended to capture Father’s self-employment income and VA disability benefits) plus his future expected earnings from a 20% ownership interest in a newly formed business.1 The court used the hourly pay rate reflected on Mother’s pay

1 The court used the same income figure, less the future expected earnings, to calculate Father’s obligation from the effective date of the modification (the month following service of Mother’s petition) to the month following the ruling, when the current support obligation would begin. See A.R.S. § 25-327(A); see also A.R.S. § 25-503(E).

2 STATE/DENNIS v. LIGHTLE Decision of the Court

stub to calculate her income. Over Father’s objection, the court included the ongoing $350 per month that Mother paid for childcare for their teenage child.

¶5 Father and Mother filed motions to alter or amend the judgment, which the superior court denied. Father timely appealed, and we have jurisdiction under A.R.S. § 12-2101(A)(2).

DISCUSSION

I. Child Support Modification.

¶6 In Arizona, all child support obligations are determined under the Arizona Child Support Guidelines, which calculate an overall amount of support and each parent’s proportionate share. A.R.S. § 25-320 app. (“Guidelines”) § I(A). An existing child support obligation may be modified upon a showing of a substantial and continuing change in circumstances, including circumstances in which the Guidelines amount varies at least 15% from the existing support order. A.R.S. § 25-327(A); Guidelines § XIV(A), (C)(1)(a). We review an order modifying child support for an abuse of discretion. Little v. Little, 193 Ariz. 518, 520, ¶ 5 (1999). We accept the superior court’s factual findings unless clearly erroneous but review its legal conclusions de novo. Birnstihl v. Birnstihl, 243 Ariz. 588, 590–91, ¶ 8 (App. 2018). We defer to the superior court’s credibility assessments. Nia v. Nia, 242 Ariz. 419, 423–24, ¶ 14 (App. 2017).

¶7 Father challenges the superior court’s findings as to several criteria relevant to calculation of support under the Guidelines: each party’s income, adjustments to child support income based on children from other relationships, and adjustments to the basic support obligation for childcare expenses. As described below, one anomalous adjustment to child support income requires vacatur of the award and remand for recalculation. See infra ¶¶ 8–10. We also briefly address Father’s other arguments concerning issues that may recur on remand. See infra ¶¶ 11–18.

A. Adjustments to Child Support Income.

¶8 Under the Guidelines, a parent’s income for purposes of determining child support is reduced to account for support paid for children of other relationships. See Guidelines § II(B)(2)(c)–(d). The amount deducted is either the amount the parent actually pays in court-ordered support for the other child or, for the primary residential parent of the other child, an amount based on a simplified application of the Guidelines. Id.

3 STATE/DENNIS v. LIGHTLE Decision of the Court

¶9 The superior court here included two such adjustments. The parties did not dispute that Father had another son who lives with him, so the court properly included an other-child deduction for Father based on a simplified application of the Guidelines.2 See Guidelines § II(B)(2)(d).

¶10 But the court also included an other-child deduction of $4,900 for Mother, even though Mother confirmed that she had no children from other relationships. The record reveals no apparent explanation for this deduction, and it appears contrary to the superior court’s intended calculation, which (accurately) listed “0” other children for Mother. This deduction, which is not supported by the record, substantially skews the parties’ combined income (and thus their combined support obligation) as well as their proportionate, income-based shares of that obligation. See Guidelines § I(A) (Steps 1, 3, 5, 6). Accordingly, we vacate the modified child support award and remand for recalculation.

B. Child Support Income.

¶11 Father asserts that the superior court erred in calculating both his and Mother’s income. Income under the Guidelines includes gross income from any source. Guidelines § II(A)(1)(b). Among other sources, this may include a parent’s wages, military disability benefits, and earnings from self-employment or business ownership. See Guidelines § II(A)(1)(b), (e). Income for child support purposes is not necessarily equivalent to income for tax purposes. See Guidelines § II(A)(1)(a).

1. Father’s Income.

¶12 Father asserts that the superior court substantially overstated his income by including non-recurring income and an unsupported estimate of his future business earnings.

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