What findings must courts make before modifying custody orders in Utah? Martinez v. Sanchez-Garcia Explained

Utah’s custody modification framework requires district courts to follow a two-part test before altering existing custody arrangements. The Utah Court of Appeals’ decision in Martinez v. Sanchez-Garcia illustrates the consequences when courts fail to properly analyze either prong of this test.

Background and Facts

Martinez and Sanchez-Garcia divorced in 2017 with a stipulated decree granting Martinez primary physical custody of their two children. Two years later, Martinez moved with the children from Cache County to Layton, Utah—approximately sixty miles away. Sanchez-Garcia filed a counter-petition seeking primary custody modification based on Martinez’s relocation. The district court granted the modification, awarding Sanchez-Garcia primary custody unless Martinez returned to Cache County.

Key Legal Issues

Martinez challenged the modification on two grounds: first, the court failed to make findings regarding whether a substantial and material change in circumstances had occurred; second, the court failed to adequately consider relevant custody factors, particularly her status as the children’s primary caregiver.

Court’s Analysis and Holding

The Court of Appeals found merit in both challenges. Under Utah Code § 30-3-10.4(2)(b), custody modification requires written findings on two elements: (1) a material and substantial change of circumstance has occurred, and (2) modification would improve the child’s best interests. The court noted that Martinez’s sixty-mile move—well within the 150-mile relocation statute threshold—did not obviously constitute the substantial change required for modification, especially given evidence that the children were thriving and Sanchez-Garcia’s parent-time remained unchanged.

Regarding custody analysis, the court emphasized that the primary caregiver factor deserves “considerable weight” and sits at the “critically important end of the spectrum.” The district court discussed only three of twenty-five applicable statutory factors and failed to address Martinez’s role as primary caregiver despite significant evidence on this point.

Practice Implications

This decision reinforces that custody modifications require rigorous analysis of both procedural and substantive requirements. Courts must make express written findings on changed circumstances before proceeding to best-interests analysis. When conducting custody analysis, courts should address all relevant statutory factors, particularly those emphasized by the parties and supported by significant evidence. The decision also clarifies that geographic moves within Utah’s 150-mile threshold do not automatically constitute substantial changes warranting custody modification.