While family offices come in many shapes and sizes, one universal experience is that everyone working in a family office has at one time heard or said the following platitude: “Once you know one family office, you know one family office.” We term this popular saying “the first law of family offices.” Besides acting as a universal introduction for any family office plenary session, this phrase succinctly distills one of the core truths of family offices: all families, and therefore family offices, are inherently different[1]. The phrase is more than an empty platitude. In fact, it encapsulates an entire philosophy for family office professionals and therefore merits a more careful reading.