“When Ed filed for divorce in 2017, Marie discovered that almost all of the couple’s property — from the homes and island to her jewelry and even some of their tableware — had been put into a special trust that shielded the assets from any claims. Rather than getting half of a fortune she estimated to be worth more than $2 billion, she may wind up with little or nothing after paying her legal bills.” CNBC: Billionaire divorce uncovers secretive world of trusts in South Dakota.