Sensitive parenting and secure attachment can serve as protective factors against developmental risks associated with high-risk environments such as homelessness and shelter living. This article describes a program for mothers with children from birth to 3 years old whose families are living in shelters and who are enrolled in PACT: Helping Children With Special Needs' Therapeutic Nursery program. The authors describe the interventions designed to increase positive parenting behaviors to foster healthy parent-child interaction, and then present a research study that examines how maternal participation in these interventions is related to improved parent-child interaction.