Parenting practices are major influences on incidents of juvenile delinquency. Stress experienced by parents of children with behavioral problems is a leading contributor to parenting practices. We investigated the extent to which parental stress was reduced by participation in an established multiple group family intervention, the Family Solutions Program, developed to reduce recidivism among juvenile offenders. We also examined parent stress by gender, ethnicity, dropout rates, intervention benefits at 3-month follow-up, singleversus two-parent households, and across dimensions of family functioning and parentadolescent communication. Parents reported greater levels of parent stress than non-clinical parents prior to intervention. Parental stress did diminish in response to intervention, but not until follow-up to intervention completion. No differences were found on initial parent stress level between completers and non-completers of the intervention or between parent stress and gender or ethnicity of the parent; however, single-parent household was associated with significantly higher levels of parent stress. Family functioning was significantly negatively correlated with parental stress. Finally, open communication between juvenile first offenders and their parents improved significantly in response to the intervention both at post-intervention and at follow-up.