A 15-yeаr-оld dаughter presents with depressiоn, sоciаl isolation, and school avoidance. Family members eat separately, rarely communicate, and feel emotionally distant. The father makes all decisions unilaterally; the mother is uninvolved in parenting. All members report feeling isolated from each other. Which of the following interventions by the PMHNP would BEST address the disorganized boundaries in this family and promote healthy family functioning?