This assignment discusses the concept of substantial damages in real estate contracts, highlighting two cases where courts considered the extent of damage to determine whether a contract can be rescinded. In the first case, a fire damaged a property, but the court found that the structure and condition of the property before the fire were unaffected, leading to the conclusion that there was no material difference. In the second case, a building on a block of land was damaged by fire, rendering it untenantable. The court held that the contract could be rescinded as the damage was substantial and had rendered the property in a materially different state. These cases demonstrate that courts consider various factors, including the intention of the parties, to determine whether damages are substantial enough to justify rescission of a contract.