A key mechanism of resilience, family communication, is examined in relationship to sustained improvement in parent/caregiver mental health. Service delivery data was utilized from parents/caregivers who participated in Families OverComing Under Stress. Data were analyzed for parents/caregivers indicating clinically meaningful symptoms of depression or anxiety at baseline and who completed measures of family communication each session and follow-up. Results found that family communication improvement from Baseline-Exit was significantly associated with sustained improvement in anxiety (p = .0223) and depression (p = .0349). Improvements in family communication may be critical in sustaining mental health symptom improvement among parents/caregivers.