IN THE

ARIZONA COURT OF APPEALS

DIVISION ONE

In re the Matter of:

HEIDI L. NICKEL, Petitioner/Appellee,

v.

CHRISTOPHER K. POTTER, Respondent/Appellant.

No. 1 CA-CV 22-0451 FC

Appeal from the Superior Court in Maricopa County

No. FC2010-052126

The Honorable Andrew J. Russell, Judge

The Honorable Richard Albrecht, Judge Pro Tempore

The Honorable Michelle Carson, Judge

AFFIRMED

APPEARANCES

Heidi L. Nickel, Cave Creek

Petitioner/Appellee

Christopher K. Potter, Cave Creek

Respondent/Appellant

FILED 10-10-2023
NICKEL v. POTTER

Opinion of the Court

2

OPINION

Judge Michael J. Brown delivered the opinion of the Court, in which 

Presiding Judge Paul J. McMurdie and Judge Michael S. Catlett joined.

B R O W N, Judge:

¶1 Christopher K. Potter (“Father”) appeals the superior court’s 

ruling vacating a child support order that was entered without 

consideration of the most recent order issued by a different judge in the 

same case. Because a petition to modify child support must seek to modify

the most recent child support order issued in the divorce proceeding, we 

affirm. 

BACKGROUND

¶2 Heidi L. Nickel (“Mother”) petitioned for divorce in 2010. 

After a default hearing, the superior court awarded Mother sole custody of 

the parties’ two minor children and ordered Father to pay child support. In 

2011, Father and Mother stipulated to joint custody, with neither party 

paying child support.

¶3 In 2020, Mother petitioned to modify legal decision-making, 

parenting time, and child support. After an evidentiary hearing, the court

awarded Mother sole legal decision-making, with Father having supervised 

parenting time along with the obligation to pay Mother $998 per month in 

child support (“October 2020 Order”). 

¶4 On December 1, 2020, Mother petitioned to enforce child 

support. The superior court set a hearing for mid-January 2021 to address 

Mother’s petition, ordering the parties to appear. On December 29, 2020, 

Father filed a petition to modify the October 2020 Order through the 

“simplified process” authorized by the Arizona Child Support Guidelines. 

See A.R.S. § 25-320 app. (“Guidelines”) § XIV.C. He attached a child support 

worksheet and a proposed order listing his child support obligation as $76 

per month, effective January 1, 2021. 

¶5 As a result of the January 2021 hearing, Judge Carson issued

a minute entry acknowledging that the parties had “reached a full 

agreement.” Judge Carson then approved the parties’ stipulated judgment 

and order (“January 2021 Order”), which confirmed the child support 
NICKEL v. POTTER

Opinion of the Court

3

arrears owed by Father, and stated that he “shall continue to pay $998.00 

per month as and for current child support in accordance with [the October 

2020 Order].” The parties also agreed that an income withholding order 

would be issued against Father’s wages in that amount. 

¶6 Several weeks later, and presumably unaware of the January 

2021 Order, Judge Albrecht issued an order stating that “Father is obligated 

to pay child support to Mother” in the amount of $76 per month (“February 

2021 Order”). Neither the January 2021 Order nor the February 2021 Order 

included any reference to Arizona Rule of Family Law Procedure (“Rule”) 

78(b) or (c) suggesting the orders were appealable. Mother then petitioned 

to modify in March 2021, explaining that after Father filed his December 

petition, Father’s obligation to pay $998 per month was confirmed at the 

January 2021 hearing. Mother contended that although she was served 

with Father’s petition in December 2020, as a self-represented litigant at the 

time, she believed it would be addressed at the January 2021 hearing, which 

was “well within the 20-day response time.” 

¶7 For various reasons not relevant here, the hearing on Mother’s 

petition was not held until April 2022. Judge Russell heard from both 

parties on their competing positions about the enforceability of the January 

2021 Order versus the February 2021 Order. Mother explained that the 

parties entered their agreement as a result of the January 2021 hearing, and 

she did not object to Father’s petition because she believed it was resolved 

at that time. She suggested that Judge Albrecht did not know about the 

January stipulation. Father countered that he did not believe the February 

2021 Order was a mistake; it was correctly entered because he was making 

less than minimum wage at that time. The parties also testified about their 

respective finances. 

¶8 In May 2022, Judge Russell issued his ruling, finding that the 

parties resolved the issue of Father’s child support obligation at the January 

2021 hearing, when Father agreed to keep paying $998 per month. Judge 

Russell explained that “[n]othing in the [January 2021 Order] suggest[ed] 

that Father retained the right to contest the amount of child support” 

originally set forth in the October 2020 Order. Noting that Father’s petition 

was “unfortunately routed” to Judge Albrecht in February 2021, Mother’s 

failure to request a hearing under the Guidelines was “understandable

given that the parties had already resolved the issue” at the January 2021 

hearing. Judge Russell thus vacated the February 2021 Order but declined 

to make any changes to Father’s child support obligation. Father timely 

appealed, and we have jurisdiction under A.R.S. § 12-2101(A)(2). 
NICKEL v. POTTER

Opinion of the Court

4

DISCUSSION

¶9 We review child support awards for an abuse of discretion,

Birnstihl v. Birnstihl, 243 Ariz. 588, 590, ¶ 8 (App. 2018), and we will affirm 

the court’s rulings for any reason supported by the record, Nia v. Nia, 242 

Ariz. 419, 422, ¶ 7 (App. 2017). We review the superior court’s 

interpretation of the Guidelines de novo, Amadore v. Lifgren, 245 Ariz. 509, 

518, ¶ 28 (App. 2018), and we interpret rules according to statutory 

construction principles, Gutierrez v. Fox, 242 Ariz. 259, 267, ¶ 28 (App. 2017). 

“If the language of a statute or rule is unambiguous, ‘we apply it as 

written.’” Id. (citation omitted). We strive to harmonize related provisions 

in the context of the overall scheme. Id.

¶10 Father argues Judge Russell erred by vacating the February 

2021 Order because Judge Albrecht was “required” to enter the order under 

the simplified procedure authorized by the Guidelines. Under the 

Guidelines, however, after Mother failed to request a hearing, in addressing 

Father’s request the court had the option of either “enter[ing] an 

appropriate order or set[ting] the matter for hearing.” See Guidelines

§ XIV.C.8.

¶11 Father also contends that if Mother wanted to challenge Judge

Albrecht’s ruling, she needed to file a notice of appeal or appropriate 

post-judgment motion instead of a modification petition. Without citing 

authority, Father also asserts that Judge Russell had no right to unilaterally 

question the validity of the February 2021 Order. 

¶12 The superior court may modify a child support order only

under circumstances authorized by law, which include (1) a petition to 

modify filed under Rule 91.1 after the latest order in the case, (2) a motion 

to alter or amend, or the court’s own authority, under Rule 83, (3) correction 

of a mistake or omission, or motion to set aside under Rule 85, (4) an 

appellate court decision directing it to do so, and (5) when legally justified, 

the court’s inherent authority. Father’s December 2020 petition was filed 

before the January 2021 Order, so it became moot when he stipulated to 

entry of that order. Because he has not established how Judge Albrecht had 

legal authority to enter an order that would have substantially changed his 

child support obligation under the January 2021 Order, Father cannot show 

Judge Russell abused his discretion in vacating Judge Albrecht’s order. 

¶13 The standard procedure for child support modification 

provides that the superior court may modify the provisions of a child 

support decree if a party shows “changed circumstances that are substantial 
NICKEL v. POTTER

Opinion of the Court

5

and continuing.” A.R.S. § 25-327(A); see also Guidelines § XIV.B (“The 

petitioning party bears the burden of showing of a substantial and 

continuing change of circumstances from the date when the existing Child 

Support Order was filed.”).

¶14 Under the simplified procedure, a party may also petition the 

court to modify a child support order if applying the Guidelines “results in 

an order that varies 15% or more from the existing amount.” Guidelines

§ XIV.C. “A 15% variation in the amount of the order is considered 

evidence of substantial and continuing change of circumstances . . . .” Id. 

The party’s petition “must be accompanied by a completed and sworn 

Child Support Worksheet, and documentation supporting the incomes if 

different from the court’s most recent findings regarding income of the 

parents.” Id. (emphasis added). Whether a party seeks modification under 

the standard or the simplified procedure, we hold that a petition for 

modification must be directed to the most recent child support order. We 

reach this conclusion based on the language used in the Guidelines, which 

contemplates that the most recent child support order is the benchmark for

a judicial officer to decide whether the existing child support obligation

should be modified. 

¶15 Our holding also eliminates potential confusion on the scope 

of the issues the parties should be prepared to litigate in addressing the 

petition to modify. It further allows for both flexibility and certainty, 

depending on the stage of the proceeding. Judgments, including orders 

establishing or modifying child support, are not appealable unless they 

include a recitation under Rule 78(b) or (c); otherwise, they are modifiable

until that language is added. See Motley v. Simmons, 1 CA-CV 22-0541, 

___Ariz. ___, ¶¶ 12, 15 (App. October 10, 2023); Ariz. R. Fam. Law P. 

(“ARFLP”) 78(b) (stating that when more than one claim for relief is 

presented in a judgment, the decision “is subject to revision at any time” if, 

in part, the court has not recited that the judgment is entered under Rule 

78(b)); ARFLP 78(c) (“A judgment as to all claims, issues, and parties is not 

appealable unless the judgment recites that no further matters remain 

pending and that the judgment is entered under Rule 78(c).”). Contrary to 

Father’s assertion, the February 2021 Order was not appealable because it 

did not include any recitation that it was appealable under Rule 78. See 

Motley, ___ Ariz. at ___, ¶ 12 (explaining that the 2022 amendments to Rule 

78 apply to all pending cases, including appeals).

¶16 Given these circumstances, a proper analysis of Mother’s 

petition to modify required Judge Russell to determine which order applied 

to the dispute before him, and he correctly exercised his authority to do so. 
NICKEL v. POTTER

Opinion of the Court

6

See ARFLP 83(a) (stating that “[t]he court may on its own or on motion alter 

or amend all or some of its rulings” on enumerated grounds); see Major v. 

Coleman, 251 Ariz. 345, 348, ¶ 13 (App. 2021) (recognizing the superior court

may exercise its inherent authority by taking appropriate actions “to 

effectuate the administration of justice in cases pending before it”); see also

Motley, ___ Ariz. at ___, ¶ 15.

¶17 Father also argues the January 2021 Order simply confirmed 

the October 2020 Order. He contends that construing the January 2021 

Order as resolving his pending petition violates his due process rights 

because the order to appear only mentioned Mother’s petition to enforce. 

But a party who consents to a judgment generally waives any right to 

challenge it on appeal. See Duwyenie v. Moran, 220 Ariz. 501, 506, ¶¶ 16–18 

(App. 2009). Even so, Father does not identify when he raised a due process 

concern in the superior court. See Chang v. Siu, 234 Ariz. 442, 446, ¶ 12 (App. 

2014) (“An appellate court normally will not address arguments not raised 

in the superior court prior to the appeal.”). And to the extent Father

suggests his December 2020 petition was not addressed at the January 2021 

hearing, we will not draw that inference because he has not provided a 

transcript. See Baker v. Baker, 183 Ariz. 70, 73 (App. 1995) (“A party is 

responsible for making certain the record on appeal contains all transcripts 

or other documents necessary for us to consider the issues raised on 

appeal.”). 

¶18 Irrespective of whether Father had specific notice of what the 

January 2021 hearing would encompass, or what was discussed at that 

hearing, as a matter of law his petition to modify was rendered moot when 

he entered into the stipulated judgment. He expressly agreed to pay $998 

per month in child support. When the parties agreed to this stipulated 

judgment, it became the most recent order because it now contained the 

court’s most “recent findings” under the Guidelines. The January 2021 

Order thus re-established Father’s child support obligation. If he wanted 

the court to change that order, he had to file a new petition. And without 

it, Judge Albrecht lacked the authority to enter the February 2021 Order. 

See ARFLP 23(a) (“A ‘petition’ is the initial pleading that begins

. . . a post-decree matter.”). 
NICKEL v. POTTER

Opinion of the Court

7

CONCLUSION

¶19 We affirm the superior court’s May 2022 order. We deny 

Mother’s request for attorneys’ fees because she is a self-represented 

litigant. See Munger Chadwick, P.L.C. v. Farwest Dev. & Constr. of the Sw.,

LLC, 235 Ariz. 125, 126, ¶ 5 (App. 2014). As the successful party on appeal, 

Mother is awarded taxable costs subject to her compliance with ARCAP 21.