Does the Founder's Mandate stay frozen or does it evolve into something the family writes together?

It evolves. Kris Kluver, in The Dysfunctional Family Office, has the Mitchell family revisit Robert's original Founder's Mandate at the Cayman retreat one year later and rewrite it together as a Family Mandate. The new version captures investment strategies, business unit expectations, the foundation's role, and how the investment committee operates. The evolution matters because the original Founder's Mandate was a starting point. The founder articulated his intentions while still alive. The family then had years of conversations, retreats, and shared decisions that shaped what the family actually wanted to be. The Family Mandate reflects that shared work. Most UHNW families never get this far. Either they don't write a Founder's Mandate at all, or they write one and treat it as the final word. The healthier path is to treat the Mandate as a living document the family revisits together as the next generation matures and the family's direction sharpens.