Law
Equitable Estoppel in Contract Disputes
Quick fact
Equitable estoppel can enforce a promise even without a formal contract, if the other party reasonably relied on it and would be harmed if the promisor reneged. This doctrine has roots in English equity courts and is now a key tool in commercial litigation.
Why this is interesting
You signed a contract to rent a space, but the landlord later says the price is higher. Can you force them to stick to the original promise even if you didn't sign a new agreement?