Final answer:
Tom and Norma Willis likely received a quitclaim deed due to the trust within the family, making the process of transfer simple and without the need for extensive guarantees.
Step-by-step explanation:
When Tom and Norma Willis bought a small cottage from her parents, they received a quitclaim deed. A quitclaim deed is often used among family members because it is a simple way to transfer property without the warranties that come with a warranty deed. The quitclaim deed conveys any interest the grantor has in the property at the time of the transfer, but it does not guarantee that the title is clear of other claims or liens. This type is most likely used because there is a trust relationship between the parties, such as between parents and children, where comprehensive warranties are not necessary.