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 1        IN THE COURT OF APPEALS OF THE STATE OF NEW MEXICO

 2 MICHAEL J. SPENCE,

 3          Petitioner-Appellee,

 4 v.                                                                                   NO. 32,899

 5 CONSTANCE V. SPENCE,

 6          Respondent-Appellant.

 7 APPEAL FROM THE DISTRICT COURT OF DOÑA ANA COUNTY
 8 Steven L. Bell, District Judge

 9 Michael J. Spence
10 Las Cruces, NM

11 Pro Se Appellee

12 Constance V. Spence
13 Albuquerque, NM

14 Pro Se Appellant


15                                 MEMORANDUM OPINION

16 VIGIL, Judge.
 1   {1}   Respondent appeals from an order resolving a number of domestic relations

 2 issues. We issued a notice of proposed summary disposition, proposing to uphold the

 3 order. Respondent has filed a memorandum in opposition, which we have duly

 4 considered. Because we remain unpersuaded by the assertions of error, we affirm.

 5   {2}   Because we set forth the pertinent background and our analysis in the notice of

 6 proposed summary disposition, we will not reiterate at length here. Instead, we will

 7 focus on the content of the memorandum in opposition.

 8   {3}   First, Respondent renews her challenge to the district court’s ruling on the

 9 question of custody, by which it continued the previous award of primary physical

10 custody to Petitioner, with visitation at Petitioner’s discretion. [MIO 2-5, 12-13] We

11 remain unpersuaded that the district court abused its discretion. See generally Thomas

12 v. Thomas, 1999-NMCA-135, ¶ 10, 128 N.M. 177, 991 P.2d 7 (“We will overturn the

13 trial court’s custody decision only for abuse of discretion, and we will uphold the

14 court’s findings if supported by substantial evidence.”). Respondent bore the burden

15 of demonstrating a change of circumstances affecting the best interests of the child.

16 See id. (“A court may modify a custody order only upon a showing of a substantial

17 change in circumstances since the prior order that affects the best interests of the

18 children.”). Although Respondent presented evidence that the child was performing

19 poorly at school, this does not appear to have represented a change in circumstances.


                                              2
 1 See generally Mintz v. Zoernig, 2008-NMCA-162, ¶ 22, 145 N.M. 362, 198 P.3d

 2 861(observing that modification of an existing custody order must be based on

 3 evidence of a substantial and material change in circumstances occurring after entry

 4 of the prior order). We further note that in its decision to continue the preexisting

 5 arrangement, the district court relied partly on the child’s expressed preference. [RP

 6 429] Contrary to Respondent’s continuing assertions, [MIO 6-7] this was a valid

 7 consideration. See generally NMSA 1978, § 40-4-9 (1977).

 8   {4}   Respondent also challenges the sufficiency of the evidence to support the

 9 previous determinations by which her rights to custody and visitation were limited.

10 [MIO 3-5, 8-10] Relative to proceedings in Indiana, Respondent’s arguments are not

11 properly before us. [MIO 14, 20] See generally Meier v. Davignon, 1987-NMCA-030,

12 ¶ 9, 105 N.M. 567, 734 P.2d 807 (“Our review is limited to matters that are of record

13 in the cause before us.”). Relative to the more recent decisions in the underlying

14 proceedings, [RP 301-02, 310] our review of the record indicates that evidence was

15 presented, principally by the court-appointed guardian ad litem, to the effect that

16 Respondent was uncooperative, her behavior was inappropriate, and her contact with

17 the child was detrimental. [RP 274-300] This is sufficient to support the district

18 court’s determination. See, e.g., Thomas, 1999-NMCA-135, ¶¶ 11, 16-17 (upholding

19 an award of sole custody to the father based on the GAL’s testimony concerning


                                             3
 1 uncooperative parental behavior and its negative impact upon the children, as well as

 2 related effects on the best interests of the children). And while we acknowledge

 3 Respondent’s belief that the district court improperly assessed and balanced the

 4 evidence relative to the propriety of continuing the sole custody arrangement as well

 5 as the child’s best interests, [MIO 3-9, 20–23] we are unwilling to second-guess these

 6 determinations. See id.; and see generally Coulter v. Stewart, 1982-NMSC-035, ¶ 7,

 7 97 N.M. 616, 642 P.2d 602 (illustrating that the existence of conflicting evidence does

 8 not render the evidence insubstantial).

 9   {5}   Respondent also continues to argue that the district court erred in its treatment

10 of child support, both prospectively and with respect to arrears. [MIO 14-22] As we

11 previously observed, the district court used the child support guidelines, and

12 ultimately adopted Respondent’s proposed calculation. [RP 424, 430] As such, we

13 perceive no error relative to the prospective award. See generally NMSA 1978, §

14 40-4-11.1(A) (2008) (“In any action to establish or modify child support, the child

15 support guidelines . . . shall be applied to determine the child support due and shall be

16 a rebuttable presumption for the amount of such child support.”); Cox v. Cox, 1989-

17 NMCA-035, ¶ 22, 108 N.M. 598, 775 P.2d 1315 (declining to consider a claim of

18 error which the party invited by his own proposed findings and conclusions). Relative

19 to the treatment of arrears, we note that the district court’s calculation appears to have


                                               4
 1 been based in part upon enforcement of the initial award entered in Indiana. To the

 2 extent that the prior satisfaction of this obligation is disputed, [MIO 15, 17] we remain

 3 of the opinion that the district court, as finder of fact, was entitled to resolve that

 4 dispute as it did. See generally Chapman v. Varela, 2009-NMSC-041, ¶ 5, 146 N.M.

 5 680, 213 P.3d 1109 (“[T]he duty to weigh the credibility of witnesses and to resolve

 6 conflicts in the evidence lies with the trial court, not the appellate court.” (internal

 7 quotation marks and citation omitted)). With respect to the domestication issue, [MIO

 8 14-15] the record reflects that an agreement was reached as to this matter. [RP 428]

 9 To the extent that Respondent’s attorney of record entered such an agreement or

10 stipulation, [DS 13] Respondent is bound thereby. See Percha Creek Mining, LLC v.

11 Fust, 2008-NMCA-100, ¶ 11, 144 N.M. 569, 189 P.3d 702 (observing that a party is

12 bound by its stipulation); e.g. Lane v. Lane, 1996-NMCA-023, ¶ 17, 121 N.M. 414,

13 912 P.2d 290 (declining to set aside the stipulation of counsel where no equitable

14 basis for so doing was presented). With respect to the period of time following

15 Petitioner’s motion for modification, we note that contrary to Respondent’s assertions,

16 [MIO 15] arrears were appropriately assessed. See generally Zabolzadeh v.

17 Zabolzadeh, 2009-NMCA-046, ¶ 7, 146 N.M. 125, 207 P.3d 359 (“New Mexico . . .

18 allows modification of child support to be retroactive to the date of the petition for

19 modification.”). Moreover, the district court’s calculation appears to have been based


                                               5
 1 on Respondent’s own proposal. [RP 428] Once again, Respondent is bound thereby.

 2 See Cox, 1989-NMCA-035, ¶ 22 (declining to consider a challenge to a party’s own

 3 proposed resolution of a disputed matter).

 4   {6}   To the extent that Respondent may continue to challenge the district court’s

 5 handling of the debt equalization, we again note that the equalization was the product

 6 of a simple calculation by which the monies due to Petitioner were offset against

 7 monies due to Respondent, pursuant to the final decree of dissolution of marriage, a

 8 prior award of attorney fees, and the child support determinations mentioned above.

 9 [RP 426-31] To the extent that Respondent’s challenge is based upon her concerns

10 about domestication of the previously entered judgments and the district court’s child

11 support calculations, for the reasons previously stated we reject her arguments. We

12 specifically note with respect to the district court’s failure to credit her for monies

13 expended to purchase a life insurance policy, [MIO 17-18] insofar as the purchase of

14 such a policy was not court ordered, it represents a voluntary expenditure for which

15 Respondent is not entitled to any offset. See Hopkins v. Hopkins, 1989-NMCA-101,

16 ¶ 16, 109 N.M. 233, 784 P.2d 420, (stating the general rule is that “a non-custodial

17 parent will not be permitted credit against court-ordered child support obligations for

18 gifts given to the children”). Ultimately, insofar as evidence was presented to establish




                                               6
1 the amounts due, and insofar as the district court’s calculations are accurate, we reject

2 Respondent’s assertions of error.

3   {7}   Accordingly, for the reasons stated above and in the notice of proposed

4 summary disposition, we affirm.

5   {8}   IT IS SO ORDERED.


6                                          __________________________________
7                                          MICHAEL E. VIGIL, Judge
8 WE CONCUR:


 9 ___________________________________
10 JAMES J. WECHSLER, Judge



11 ___________________________________
12 J. MILES HANISEE, Judge




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