Answer: Chris claims they have formed a binding contract. In fact, the contract may be voidable, because it was formed as a result of undue influence.
Explanation: Undue influence happens when one person takes advantage of another by using their position of power. Since Chris takes care of Laura's home and threatening his mom that she would never see him again, Chris holds the power. He is using undue influence to force his mom to invest her money into his restaurant.