The work of Urie Bronfenbrenner is a key framework in Family Science, yet there are many areas where it has seldom been applied, including in the processes experienced by divorcing families in Family Court. Acknowledging the paucity of scholarship applying ecological systems theory to these topics, the paper offers instructive interpretations of personal practice experience in these roles. Described are two of several career roles in Family Court available to professionals trained in family science and how Bronfenbrenner's ecological systems model of development is applicable in that work. Careers described are providing training and consultation for attorneys and judges and conducting custody evaluations. Bronfenbrenner's model affords consistent and useful principles for both roles. The processes of separation and divorce are described as a series of ecological transitions that affect not only family structure, but the relationships that make up the family system, as well as family members' participation in other ecosystems. Changes in relationships and ecosystems affect development by requiring individuals to adapt. Family Court itself is an ecosystem with roles, activities and macrosystem beliefs that are often stressful for family members and that may increase risks to family relationships and development. Discussion considers areas where Family Scientists can use Bronfenbrenner's model to contribute to improved research and practice for divorcing families. [Note: The volume number (27) shown in the footer on the PDF is incorrect. The correct volume number is 28.]