In this scenario, a critical factor is the communication between Bob and Patty, along with Patty's intent.
Patty initially approached Bob with an offer to purchase his house for $100,000, significantly below its market value.
However, Patty later discovers that her son, Oliver, and his wife, Sarah, have purchased another house nearby, rendering Patty's original intention to buy Bob's house unnecessary.
Despite Patty's offer to Bob and his subsequent acceptance, Patty's withdrawal from the deal based on the changed circumstances doesn't constitute a legally binding agreement.
An essential aspect of contract law is the meeting of the minds, where both parties agree to the same terms under the same circumstances. In this case, Patty's intent to buy the house for her son influenced her offer to Bob.
However, since the circumstances changed with Oliver and Sarah purchasing another house nearby, Patty's intent and offer to buy Bob's house were affected.
Therefore, Bob's acceptance of Patty's offer might not form a legally enforceable contract because Patty's intent and offer were contingent on her son not purchasing another house nearby.
Patty's subsequent withdrawal from the deal due to the changed circumstances and her lack of intent to follow through on the purchase for Oliver and Sarah's benefit could be considered a fundamental misunderstanding of the original terms, potentially invalidating the agreement.