Participation of extended family members, particularly custodial grandparents, has generally resulted in better outcomes for abused children and relief for an overburdened child welfare system. This research explores the risk of adolescent perpetrated violence in custodial grandparent households with data from the Florida Department of Juvenile Justice. Findings suggest that living arrangements with custodial grandparents have a significant and differential impact on rates of violent offending for chronic and serious offenders by race and gender. (Contains 2 tables.)