Which duty is primarily concerned with acting in the best interests of the client?

The duty primarily concerned with acting in the best interests of the client is loyalty. In real estate practice, loyalty involves putting the interests of the client first and ensuring that any actions taken are to benefit the client above any personal or outside interests. This duty is fundamental in establishing a trust-based relationship between the broker and the client.

Loyalty encompasses the obligation to avoid conflicts of interest and to not take advantage of the client's vulnerabilities. It is an essential component of the fiduciary relationship that exists in real estate. By demonstrating loyalty, the broker reinforces their commitment to safeguard the client's objectives and provide the highest level of service.

Confidentiality, obedience, and disclosure are also important duties that a broker must uphold. However, while confidentiality protects a client's information, obedience requires following lawful instructions, and disclosure involves informing the client about relevant information and risks. These duties support the overall relationship but do not solely encapsulate the concept of acting in the client's best interests in the way that loyalty does.