Adoption marks a radical transition in caregiving for thousands of children adopted internationally from institutional care; however, very little is known about the quality of this parenting compared to other populations or the transactional effects of parent and child characteristics in post-adoption families during the transition to family care. The current study examined parental sensitivity/responsiveness and structure/limit-setting in a group of 68 children adopted internationally from institutions (41 girls, 27 boys; M age = 26.13 months, SD=4.99) and their parents over the first year following adoption and compared them to a sample of non-adoptive families (26 girls, 26 boys; M age = 27.65 months, SD=5.71). Results indicated no mean-level differences in parenting quality on either dimension between adoptive and non-adoptive parents. For post-institutionalized youth, higher quality parental structure and limit-setting soon after adoption predicted reduced child regulation difficulties eight months later; however, initial child regulation did not predict later parenting. There were no cross-lagged relations for parental sensitivity/responsiveness. Higher quality preadoptive care for children was associated with higher scores on both sensitivity/responsiveness and structure and limit-setting among adoptive parents. Less growth stunting, indicative of less preadoptive adversity, was associated with parents’ use of more effective structure and limit-setting behaviors. Policies should promote better preadoptive care abroad, such as lower caregiver-child ratios, as well as early adoption. At least in families exhibiting generally high sensitivity/responsiveness, interventions should target parental structure and limit-setting to have the greatest effect on child behavioral regulation in the immediate years post-adoption.