UBE Agency Authority
Last updated: May 2, 2026
Agency Authority questions are one of the highest-leverage areas to study for the UBE. This guide breaks down the rule, the elements you need to recognize, the named traps that catch most students, and a memory aid that scales to test day. Read it once, then practice the same sub-topic adaptively in the app.
The rule
An agent binds the principal to a contract with a third party only when the agent acts with authority. Authority comes in four flavors: actual express authority (principal's words to the agent), actual implied authority (reasonably necessary or incidental to the express grant, or based on custom/prior dealings), apparent authority (manifestation by the principal to the third party that creates a reasonable belief the agent is authorized), and ratification (principal, with knowledge of material facts, accepts the previously unauthorized act). See Restatement (Third) of Agency §§ 2.01-2.03, 3.03, 4.01. Without one of these, the principal is not bound and the agent may be personally liable for breach of the implied warranty of authority.
Elements breakdown
Actual Express Authority
Authority a principal expressly grants the agent through words, written or spoken, instructing the agent to act.
- Principal's manifestation directed to the agent
- Agent's reasonable understanding of that manifestation
- Act falls within the scope granted
Common examples:
- Written employment contract authorizing the CFO to sign loan documents up to $500,000
- Oral instruction telling a real estate agent to list property at a stated price
Actual Implied Authority
Authority the agent reasonably believes she has based on the principal's conduct, the position held, custom in the industry, or what is necessary to accomplish an expressly authorized task.
- Principal's manifestation (express grant or position)
- Agent's reasonable belief authority exists
- Act is incidental, customary, or necessary to express authority
Common examples:
- A general manager has implied authority to hire and fire ordinary staff
- An agent told to deliver goods has implied authority to hire a truck
Apparent Authority
Authority that exists when the principal's manifestations to a third party cause the third party to reasonably believe the agent is authorized to act on the principal's behalf.
- Manifestation traceable to the principal (not the agent alone)
- Third party's reasonable belief in agent's authority
- Third party's reliance on that belief
Common examples:
- Principal places agent in a position (e.g., store manager) typically vested with authority
- Principal allows agent to use letterhead, business cards, or office space suggesting authority
- Lingering apparent authority after termination where third party has no notice
Ratification
Affirmance by the principal, with knowledge of all material facts, of a prior act done by another that was purportedly done on the principal's behalf, treating the act as authorized from the outset.
- Agent purported to act on principal's behalf
- Principal had capacity at time of act and ratification
- Principal knew all material facts
- Principal manifested affirmance (express or by accepting benefits)
- Ratification covers the entire act, not part
Common examples:
- Principal accepts and retains benefits of an unauthorized contract after learning of it
- Express written approval of an unauthorized purchase order
Inherent Agency Power / Estoppel
A residual basis (Restatement (Second) inherent agency, or estoppel under Restatement (Third) § 2.05) imposing liability where actual or apparent authority is absent but fairness demands it.
- Principal intentionally or carelessly caused belief in authority, OR
- Principal knew of belief and failed to correct it
- Third party justifiably and detrimentally relied
Common examples:
- General agent of an undisclosed principal acting within usual scope
- Principal silently watching third party deal with purported agent
Termination of Authority
Actual authority ends by agreement, completion of purpose, lapse of time, revocation, renunciation, death/incapacity, or operation of law; apparent authority lingers until the third party receives notice.
- Event terminating actual authority occurs
- For apparent authority: third party lacks actual or constructive notice
- Reasonable belief in continuing authority persists
Common examples:
- Former employee continues to use company business cards; principal must give actual notice to known customers and constructive notice (e.g., publication) to others
Common patterns and traps
The Principal-Must-Speak Trap
Apparent authority requires a manifestation traceable to the principal. Bar questions routinely give you an agent who tells the third party, 'Don't worry, I have full authority,' and ask whether the principal is bound. Without principal conduct (a title, prior course of dealing, position) the third party's belief is not 'reasonable' and cannot be apparent authority.
A choice that says 'Yes, because the agent represented that he had authority and the third party believed him.' Wrong — the agent's representation alone is never enough.
The Lingering-Apparent-Authority Pattern
After actual authority terminates (firing, resignation, death of principal in some jurisdictions, etc.), apparent authority continues as to third parties who lack notice. Majority rule requires the principal to give actual notice to known customers and constructive notice (publication) to others. A fired employee who still has business cards can bind the principal as to a customer who deals on the strength of past dealings.
A choice saying 'No, because the agent had been fired before signing the contract.' Often a trap — termination of actual authority does not automatically end apparent authority.
The Ratification-Without-Knowledge Trap
Ratification requires the principal to know the material facts of the unauthorized act. Accepting a benefit while ignorant of the underlying transaction is not ratification. Questions often have the principal cash a check or accept a delivery without knowing the agent exceeded authority — that is not ratification, and the principal can usually rescind once informed.
A choice saying 'The principal ratified by accepting payment.' Check whether the principal knew the agent had no authority — if not, no ratification.
The Implied-vs-Apparent Confusion
Implied authority looks at what the agent reasonably believes given the principal's conduct toward the agent (or the agent's position). Apparent authority looks at what the third party reasonably believes given the principal's conduct toward the third party. The same act (e.g., naming someone 'General Manager') often supplies both, but exam stems sometimes give a closeted internal limitation that destroys actual implied authority while leaving apparent authority intact.
A choice saying 'No actual authority because the principal secretly forbade the act' — that may be true but irrelevant if apparent authority exists.
The Undisclosed-Principal Pivot
When the principal is undisclosed, there can be no apparent authority (the third party does not know a principal exists). The third party must rely on actual authority or inherent agency power (Restatement Second). Watch for facts where the agent acts in his own name and the principal's identity surfaces only after the deal — apparent authority is off the table.
A choice citing apparent authority where the third party did not know a principal existed at the time of contracting. That choice is wrong as a matter of doctrine.
How it works
Start every agency-authority question by asking who said what to whom. Actual authority looks at communications between principal and agent; apparent authority looks at communications (or holding-out conduct) between principal and the third party. For example, suppose Patel Logistics, LLC tells its dispatcher Reyes to 'arrange short-haul deliveries.' Reyes signs a one-year lease for a warehouse with Liu Properties. Reyes lacks actual express authority (no warehouse-leasing instruction) and probably lacks implied authority (a long-term lease is not incidental to short-haul dispatching). Apparent authority requires a manifestation from Patel Logistics to Liu — Reyes's own claim that he can lease real estate is not enough. If Patel later learns of the lease and starts moving inventory in, that conduct may ratify the lease so long as Patel knew the material terms. Always run all four theories before concluding the principal is not bound.
Worked examples
Is Reyes bound to pay for the parts?
- A No, because Chen lacked actual authority to place an order above $25,000.
- B No, because the internal cap automatically terminated any apparent authority.
- C Yes, because Chen had apparent authority based on his title, use of company letterhead, and the parties' course of dealing. ✓ Correct
- D Yes, because Reyes ratified the order when its board learned of the shipment.
Why C is correct: Apparent authority exists when the principal's manifestations to a third party create a reasonable belief that the agent is authorized. Reyes manifested authority through Chen's title, business cards, letterhead, and a course of dealing in which Reyes paid prior orders (including a $40,000 order) without objection. Liu had no notice of the secret $25,000 cap, and a $90,000 order is within the reasonable scope a 'Purchasing Manager' would handle for a longtime supplier. Reyes is bound under Restatement (Third) of Agency § 2.03.
Why each wrong choice fails:
- A: Lack of actual authority does not end the analysis. Apparent authority binds the principal even when the agent has been internally restricted, so long as the third party reasonably believes (based on the principal's conduct) that the agent is authorized. (The Implied-vs-Apparent Confusion)
- B: A purely internal limitation never terminates apparent authority. Apparent authority ends only when the third party receives actual or constructive notice of the limitation, and Liu received neither. (The Principal-Must-Speak Trap)
- D: Ratification requires the principal to manifest affirmance with knowledge of material facts. The board's reaction here was rejection, not affirmance — refusing delivery is the opposite of ratification. (The Ratification-Without-Knowledge Trap)
What is Okafor's strongest theory for binding Patel to the contract?
- A Actual implied authority based on Garcia's prior position as regional sales agent.
- B Apparent authority based on Patel's act of allowing Garcia to retain business cards and company email after termination. ✓ Correct
- C Ratification, because Patel allowed Garcia to keep the business cards.
- D Inherent agency power, because Garcia was a general agent of Patel.
Why B is correct: Patel's affirmative act of leaving Garcia in possession of indicia of authority (business cards, active email account) is a manifestation traceable to the principal that could create a reasonable belief in Garcia's authority. This is a classic 'lingering apparent authority' situation under Restatement (Third) of Agency § 3.11. Whether Okafor's belief was reasonable is a fact question, but apparent authority is the strongest available theory here.
Why each wrong choice fails:
- A: Actual authority — express or implied — terminated when Patel fired Garcia on March 1. Implied authority cannot survive termination of the underlying agency relationship. (The Implied-vs-Apparent Confusion)
- C: Ratification requires the principal to affirm the specific unauthorized act with knowledge of material facts. Allowing Garcia to keep business cards generally is not affirmance of the Okafor contract, which Patel has refused to perform. (The Ratification-Without-Knowledge Trap)
- D: Inherent agency power is a residual doctrine and is not the strongest theory when apparent authority squarely fits the facts. Bar graders expect candidates to identify the named, doctrinally cleaner theory first.
Is Liu bound to the remainder of the one-year contract?
- A Yes, because Liu ratified the contract by paying three monthly invoices.
- B Yes, because Brooks had apparent authority as an assistant manager to bind Liu to ordinary service contracts.
- C No, because Liu's CFO did not know the material facts of the contract when paying the invoices, so there was no ratification. ✓ Correct
- D No, because Brooks is personally liable on the contract under the implied warranty of authority, and the principal cannot be held liable when the agent is.
Why C is correct: Ratification requires that the principal have knowledge of all material facts at the time of the affirming act. The CFO assumed the invoices reflected something a store manager had properly arranged and was unaware of Brooks's involvement or the one-year term. Without that knowledge, paying the invoices is not ratification under Restatement (Third) of Agency § 4.06. Once the CFO learns the facts, Liu may rescind going forward (subject to restitution for benefits already received).
Why each wrong choice fails:
- A: Payment of benefits ratifies only when the principal knows the material facts. Reflexive payment by an unaware CFO is not affirmance of the unauthorized contract. (The Ratification-Without-Knowledge Trap)
- B: An assistant manager's title alone does not, without more, create apparent authority to commit the entire chain to a one-year service contract for all twelve locations. The scope of authority a third party may reasonably attribute to an assistant manager is limited, and Reyes did not deal with Brooks based on principal-level manifestations. (The Principal-Must-Speak Trap)
- D: Agent and principal liability are not mutually exclusive. The implied warranty of authority makes an unauthorized agent liable to the third party, but if the principal is also bound (through apparent authority or ratification), both can be liable; the doctrine does not insulate the principal.
Memory aid
Authority is 'AAAR': Actual express, Actual implied, Apparent, Ratification. For apparent authority remember 'PRR' — Principal's manifestation, Reasonable belief, Reliance.
Key distinction
Apparent authority requires a manifestation traceable to the principal — not to the agent. An agent shouting 'I'm authorized!' creates no apparent authority no matter how convincing; the principal must do or say something that reaches the third party (titles, position, prior dealings, holding out).
Summary
A principal is bound when the agent acts with actual express, actual implied, or apparent authority, or when the principal ratifies the unauthorized act with full knowledge of the material facts.
Practice agency authority adaptively
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Start your free 7-day trialFrequently asked questions
What is agency authority on the UBE?
An agent binds the principal to a contract with a third party only when the agent acts with authority. Authority comes in four flavors: actual express authority (principal's words to the agent), actual implied authority (reasonably necessary or incidental to the express grant, or based on custom/prior dealings), apparent authority (manifestation by the principal to the third party that creates a reasonable belief the agent is authorized), and ratification (principal, with knowledge of material facts, accepts the previously unauthorized act). See Restatement (Third) of Agency §§ 2.01-2.03, 3.03, 4.01. Without one of these, the principal is not bound and the agent may be personally liable for breach of the implied warranty of authority.
How do I practice agency authority questions?
The fastest way to improve on agency authority is targeted, adaptive practice — working questions that focus on your specific weak spots within this sub-topic, getting immediate feedback, and revisiting items you missed on a spaced-repetition schedule. Neureto's adaptive engine does this automatically across the UBE; start a free 7-day trial to see your sub-topic mastery climb in real time.
What's the most important distinction to remember for agency authority?
Apparent authority requires a manifestation traceable to the principal — not to the agent. An agent shouting 'I'm authorized!' creates no apparent authority no matter how convincing; the principal must do or say something that reaches the third party (titles, position, prior dealings, holding out).
Is there a memory aid for agency authority questions?
Authority is 'AAAR': Actual express, Actual implied, Apparent, Ratification. For apparent authority remember 'PRR' — Principal's manifestation, Reasonable belief, Reliance.
What's a common trap on agency authority questions?
Treating the agent's own statements as a basis for apparent authority
What's a common trap on agency authority questions?
Forgetting that ratification requires knowledge of material facts
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