R.B. v. L.B., 339 P.3d 137

Background

Parents divorced in 2009 and stipulated to a custody plan: Mother had physical custody until the child began 7th grade, at which time a court‑ordered evaluator would assess whether transfer to Father served the child’s best interest; the decree stated a "legal presumption" favoring transfer unless the evaluator determined otherwise.
The follow‑up evaluation was scheduled for summer 2012; Mother filed a Rule 60(b)(6) motion in Feb 2012 challenging the custody provisions as void on public‑policy grounds.
A series of judges considered the dispute; the court assigned to this appeal held an evidentiary hearing in Dec 2012 after ordering a custody evaluation by Dr. Walker.
Dr. Walker recommended transfer to Father; the district court reviewed the evaluator’s methodology and other evidence, found the child was generally stable, improving academically and socially, and declined to adopt the evaluator’s recommendation—leaving custody with Mother.
Father appealed, arguing (inter alia) that the stipulated change should have bound the court to the evaluator’s recommendation, that the court’s findings lacked evidentiary support, that undisclosed witnesses should have been excluded, and that Mother’s Rule 60(b) motion was untimely.
The court of appeals affirmed: it held the district court retained ultimate authority to decide the child’s best interest, the court adequately explained its reasons for rejecting the evaluator, Father failed to show clear error or prejudice, and procedural objections were waived or unpersuasive.

Issues

Issue	Father’s Argument	Mother’s Argument	Held
Whether the custody stipulation bound the court to the evaluator’s decision	The parties agreed to be bound by the evaluator; the court erred by disregarding that agreement	The decree did not divest the court of its statutory duty; the evaluator provides input but court must decide best interest	Court: Parties cannot contract away the court’s statutory duty; district court properly conducted its own best‑interest determination
Whether the district court erred in rejecting the evaluator’s recommendation without adequate explanation	The court failed to give legal effect to the stipulation and inadequately justified departing from the expert	The court explained differences in scope of evaluation, relied on other evidence, and articulated reasons for rejecting the recommendation	Court: District court articulated reasons and did not commit clear error in weighing evidence
Sufficiency of evidence for findings on child’s weight, behavior, academics	Father: Evidence (evaluator, test scores) showed problems that should favor custody change	Mother: Evidence showed improvement, efforts to address weight/behavior, and adequate schooling	Court: Findings were supported by the record; Father failed to marshal contrary evidence to show clear error
Procedural objections: undisclosed witnesses and timeliness of Rule 60(b) motion	Father: Court abused discretion by allowing undisclosed school witnesses and by permitting Mother to challenge the decree after two years	Mother: Testimony was disclosed in affidavits and was harmless; challenge concerned a future event so motion was timely	Court: Admission of witnesses was within discretion and Father failed to show prejudice; Rule 60 procedural timing did not undermine court’s authority to hold a best‑interest hearing

Key Cases Cited

Kallas v. Kallas, 614 P.2d 641 (Utah 1980) (district courts retain jurisdiction to consider custody modifications)
In re E.H., 137 P.3d 809 (Utah 2006) (even when parties agree to evaluator process, district court retains ultimate authority to ensure recommendations were properly arrived at and to enter final custody order)
Taylor v. Elison, 263 P.3d 448 (Utah Ct. App. 2011) (automatic change‑of‑custody provisions cannot avoid a best‑interest analysis where the change meaningfully alters the child’s situation)
Woodward v. LaFranca, 305 P.3d 181 (Utah Ct. App. 2013) (trial court must articulate reasons when it departs from an evaluator’s recommendation)
Cummings v. Cummings, 821 P.2d 472 (Utah Ct. App. 1991) (appellate review of factual findings is limited to clear‑error standard)