Familial is a quality of Fellowships in the sense that they are the inclusive and holistic ecclesial home to which individuals and Chapters are membered. If a Basileia Community is likened to an Ecclesial City, then a Fellowship may be likened to a neighborhood of the city. If we used only classical ecclesiastical terms, then we would call a Basileia Community a diocese and a Fellowship a parish. An expression of family life, (if not the most basic expression) is eating together at home. Therefore, the center of familial life in a Fellowship is Sunday Eucharistic worship.
Also see Fellowship, and Monastic.