There is an aphorism in the rarefied world of family offices that industry insiders will often recite at their stuffy conferences in Napa or Half Moon Bay: If you know one family office, you know one family office. In other words, every ultra-high-net-worth family is unique, and the contours of the investment-and-lifestyle shops they build to manage their assets, their profiles, and their vacations, reflect these idiosyncrasies. Their remit can include everything from managing family meetings to advising on “intergenerational wealth transfers,” to tax hacks like Opportunity Zones, to managing serious kidnapping threats and obtaining second passports.