History
The Rule Against Perpetuities and Modern Trust Planning
Quick fact
The Rule Against Perpetuities famously requires that a future interest must vest, if at all, within 21 years after the death of some 'life in being' at the creation of the interest. Yet, many modern trusts are designed to last for hundreds of years, often by using perpetual trust jurisdictions that have abolished or modified the rule.
Why this is interesting
You might think you can leave your fortune to your great-grandchildren forever, but a centuries-old legal rule limits how far into the future you can control your property. What is this rule, and why do modern lawyers find ways around it?