An agency relationship created when a principal's conduct leads a third party to reasonably believe an agency exists.
Why Agency by Estoppel matters on the exam
This term belongs to Agency. The questions below are real items from Freehold's bank that use it - each one cites its source.
Exam questions using Agency by Estoppel
Every Freehold question shows why the right answer is right — and cites its source.
Agency by estoppel arises when:
A principal formally signs a written power of attorney naming the agent as the principal's attorney-in-fact for the transaction
A licensee's license is suspended mid-transaction
A principal's own words or conduct lead a third party to reasonably believe an agency exists and to rely on that belief
A buyer and seller mutually agree in writing to create an agency
Show answer & explanation
A principal's own words or conduct lead a third party to reasonably believe an agency exists and to rely on that belief — Estoppel prevents a principal from denying an agency relationship existed when their own conduct reasonably caused a third party to believe it did, and that party relied on it to their detriment.
Source: PSI National Real Estate Exam Content Outline §5 General Principles of Agency
A principal never authorized a specific offer negotiated on their behalf by an unlicensed assistant, but after reviewing the terms, the principal signs the resulting contract. By signing, the principal has:
Renounced the agency
Ratified the previously unauthorized act
This simply created a brand new agency by estoppel
Terminated the agency by operation of law
Show answer & explanation
Ratified the previously unauthorized act — Signing and accepting the terms of a previously unauthorized negotiation is a classic example of ratification, where after-the-fact approval creates agency authority for that act.
Source: PSI National Real Estate Exam Content Outline §5 General Principles of Agency
How does agency by estoppel differ from agency by ratification?
Estoppel requires a signed writing between the parties, while ratification may be established by the principal's subsequent conduct alone
Ratification can only be used to terminate an existing agency relationship, while estoppel can only be used to create an entirely new relationship between the principal and a third party who dealt with the agent
Estoppel protects a third party who reasonably relied on the principal's own conduct, while ratification requires the principal to affirmatively approve a specific unauthorized act after it occurred
There is no meaningful legal difference between the two, since both arise from the principal's later approval of the agent's act
Show answer & explanation
Estoppel protects a third party who reasonably relied on the principal's own conduct, while ratification requires the principal to affirmatively approve a specific unauthorized act after it occurred — Estoppel focuses on protecting third-party reliance caused by the principal's own conduct, whereas ratification requires the principal to knowingly approve a specific unauthorized act that already took place.
Source: PSI National Real Estate Exam Content Outline §5 General Principles of Agency
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