Consider that it takes 2 years to return an asset untouchable, once it has been transferred to a foundation, the 2-year wait once the asset has been transferred is to prevent foundations from being opened for fraud. To protect the goods, they must be opened in unsuspecting times, when there is still no legal attention on the goods, preferably as an anti-seizure insurance in case things go badly in this regard. Generally 3 or 5 years in advance so that the 2 years legally necessary for the property to be transferred to the foundation have passed.