Samantha, a buyer$$s agent, takes on a client who wants a home with a large backyard. Samantha works diligently to find suitable properties for her client and narrows down the options to three homes. She carefully reviews all the relevant information, including property disclosures and survey reports, to ensure that her client has access to all the necessary information. At each property viewing, Samantha points out any potential defects or issues that could affect her client$$s decision. She also provides her client with guidance on negotiation strategies. When her client finally decides on a property, Samantha ensures that all the financial and legal documentation is in order and assists in the settlement of the purchase transaction. What duty is described here?