A comprehensive look at the past, present and future of family offices. : In 2018, high-net-worth (HNW) and ultra-high-net-worth (UHNW) wealth spiked 10.6 percent to surpass the $70 trillion threshold for the first time. As exceptional wealth is created by ultra-wealthy families and individuals, their balance sheets and personal financial situations increase in complexity, which necessitates a new approach to the management and stewardship of this wealth, as well as the oversight of the family office.