Agency law is concerned with any “principal”-“agent” relationship; a relationship in which one person has legal authority to act for another. Such relationships arise from explicit appointment, or by implication. The relationships generally associated with agency law include guardian-ward, executor or administrator-decedent, and employer-employee.
The law of agency is based on the Latin maxim “Qui facit per alium, facit per se,” which means “he who acts through another is deemed in law to do it himself.” Agency, in its legal sense, nearly always relates to commercial or contractual dealings. Learn More ⇒ law.cornell.edu
The law of agency is an area of commercial law dealing with a set of contractual, quasi-contractual and non-contractual fiduciary relationships that involve a person, called the agent, that is authorized to act on behalf of another (called the principal) to create legal relations with a third party. Learn More⇒ Wikipedia