What is another term for an agent entrusted to act on someone's behalf?

The term "fiduciary" refers to an agent who is entrusted with the responsibility to act on behalf of another person, typically in financial or legal matters. This relationship is built on trust and requires the fiduciary to act in the best interests of the individual they represent. A fiduciary obligation includes the duty to act with loyalty, care, and good faith, ensuring that the principal's needs are prioritized above their own.

While "agent" can refer to someone who acts for another, it is a broader term and does not inherently imply the same level of trust and duty as a fiduciary. "Proxy" implies a power of attorney or someone granted authority to act in specific instances but lacks the comprehensive duties of loyalty and care associated with a fiduciary. "Representor" is not a standard term in legal or real estate contexts and does not convey the specific responsibilities tied to fiduciary relationships. Therefore, "fiduciary" is the most accurate term for someone entrusted to act on another's behalf with a high degree of responsibility and ethical obligation.