Care Without Perfection: The Standard the Agent Must Meet
An agent’s duty of care asks whether the agent performed the agency undertaking with the care, competence, and diligence that an agent in the same circumstances would ordinarily exercise. The question is not whether the result was poor; it is whether the agent’s conduct was unreasonable when judged at the time of performance.
Run the analysis in this order:
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Identify the undertaking. What did the agent agree or undertake to do for the principal? The duty applies to the agent’s performance of assigned work, handling of the principal’s property or information, and exercise of delegated discretion.
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Set the correct standard. Use the care, competence, and diligence ordinarily exercised by agents in similar circumstances. If the agent possesses or represents that the agent possesses special skill, the comparison is to an agent with that skill. A professional, broker, accountant, or experienced manager cannot defend careless performance by invoking the standard of an inexperienced layperson.
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Compare conduct to the standard. A mistake is not automatically negligence. The agent may choose among reasonable methods when the principal has delegated discretion. But ignoring an obvious risk, failing to take ordinary safeguards, mishandling property, or failing to communicate when reasonable performance requires communication can breach the duty.
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Connect breach to loss. The principal must show that the careless conduct caused a legally cognizable loss. A careless act with no resulting loss may still be a breach, but it ordinarily produces no damages claim. The agent may be required to reimburse losses proximately caused by the breach.
The care standard is different from strict liability. An agent does not guarantee success merely by accepting the assignment. It is also different from loyalty: an agent who makes an honest but careless mistake presents a care problem; an agent who secretly benefits from the transaction presents a loyalty problem even if the transaction is excellent.
For partners, the statutory threshold is higher than ordinary negligence. Under RUPA § 404(c), a partner must refrain from grossly negligent or reckless conduct, intentional misconduct, or a knowing violation of law. Under ULLCA § 409(c), the comparable duty of care uses the same heightened categories for the member or manager to whom the provision applies. Thus, a partner’s or LLC fiduciary’s ordinary care lapse is not necessarily a statutory duty-of-care violation; ask whether it rises to one of those specified categories. A corporate officer acting as an agent is governed by MBCA § 8.42(a), which requires the care that a person in a like position would reasonably exercise under similar circumstances.
This is closed-book-be able to state the ordinary-agent standard and the RUPA and ULLCA statutory thresholds without relying on supplied law.
Loyalty at the Edge: Secret Benefits, Conflicts, and Consent
The duty of loyalty requires the agent to act for the principal’s benefit in matters connected with the agency, not to exploit the position for personal advantage. The central question is whether the agent placed a personal or third-party interest in conflict with the principal’s interest without proper consent.
For an ordinary agent, apply these rules:
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No secret material benefit. The agent may not acquire a material benefit from a third party in connection with transactions conducted or services performed for the principal. A commission, kickback, gift, discount, referral fee, or other economic advantage can qualify. The principal need not prove that the price was excessive or that the transaction caused a loss. The agent may have to account for and disgorge the benefit.
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No adverse dealing with the principal. The agent may not deal with the principal on the agent’s own account as an adverse party in a transaction connected with the agency unless the principal gives informed consent. Buying the principal’s property, selling the agent’s property to the principal, or secretly representing the other side creates the problem.
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No undisclosed conflict or dual representation. The agent may not act for another person whose interests materially conflict with the principal’s interests in the matter. If the agent represents both sides, each affected principal must give informed consent after adequate disclosure.
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No misuse of property or confidential information. The agent may not use the principal’s property, confidential information, or agency position for the agent’s own benefit or for another’s benefit. The agent’s duty concerning confidential information can continue after the agency ends, even though the general duty not to compete ordinarily ends with the agency.
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No competition during the agency. The agent may not compete with the principal concerning the subject of the agency while the agency continues. An agent may not take unfair advantage of a business opportunity learned through the agency, misuse the principal’s confidential information or agency position, or compete with the principal concerning the subject matter of the agency without consent.
The agent can avoid a loyalty violation through informed consent. Consent must follow disclosure of the material facts, including the agent’s interest or conflict and, where relevant, the agent’s role for another party. A vague instruction such as “you may do anything beneficial” does not necessarily authorize a concealed self-dealing transaction. Consent obtained only after the agent hides the critical fact is not informed consent. Ratification after full disclosure can also validate conduct that otherwise would breach loyalty.
The consequences differ from those for care. The principal may recover losses, rescind a transaction when rescission is available, and require the agent to surrender an improper profit. The agent cannot argue that the principal received a fair price if the agent secretly earned a material benefit. A fair result may defeat damages based on loss, but it does not ordinarily erase the duty violation or the disgorgement remedy.
For partnerships, RUPA § 404(b) lists the statutory duty of loyalty: the partner must account to the partnership for property, profit, or benefit derived from partnership business or use of partnership property; must refrain from dealing with the partnership as or on behalf of an adverse party; and must refrain from competing with the partnership before dissolution. ULLCA § 409(b) contains the parallel LLC categories. A partner’s or member’s personal gain from partnership or LLC business fits the specific accounting-for-benefit category.
Do not confuse competition with preparation to compete. An agent who quietly plans a future business, without using the principal’s confidential information or competing in the agency’s subject matter while still engaged, may not yet have breached loyalty. Soliciting the principal’s customers or diverting a transaction before the agency ends is different: it is present competition or misuse of the agency position.
Disclosure Changes the Contract: Who Is Bound and Why
Contract liability begins by classifying what the third party knew when the contract was made:
- A disclosed principal exists when the third party knows both that the agent is acting for a principal and the principal’s identity.
- A partially disclosed principal, also called an unidentified principal, exists when the third party knows the agent is acting for a principal but does not know that principal’s identity.
- An undisclosed principal exists when the third party does not know that the agent is acting for anyone else.
The disclosure classification answers who is treated as a party; it does not by itself establish that the principal is bound. For principal liability, the agent still must have authority or the principal must ratify or otherwise be bound under the applicable authority rule. Apparent authority generally cannot bind an undisclosed principal because the third party cannot reasonably rely on a manifestation from a principal whose agency relationship is unknown.
| Disclosure status | What the third party knows | Principal’s contract position | Agent’s contract position |
|---|---|---|---|
| Disclosed | Agency and principal’s identity | Bound if agent had authority or principal later ratified | Ordinarily not a party and not contractually liable |
| Partially disclosed | Agency but not principal’s identity | Bound if agent had authority or principal later ratified | Ordinarily also a party and liable |
| Undisclosed | Neither the agency nor principal’s identity | Bound if agent acted with actual authority or principal later ratified | Ordinarily also a party and liable |
For a disclosed principal, the authorized contract is ordinarily between the principal and the third party. The agent is not personally liable merely for signing or negotiating as agent. The result changes if the agent expressly agrees to be liable, guarantees performance, or breaches the agent’s warranty of authority by claiming authority that does not exist. An agent who lacks authority may be liable to the third party for the loss caused by the implied warranty of authority, unless the third party knew the agent lacked authority.
For a partially disclosed principal, both the principal and agent are ordinarily liable on an authorized contract. The third party knows an agency exists but cannot evaluate the unknown principal’s credit, reliability, or identity. That missing identity is the fact that makes the agent a party. The principal may enforce the contract as well, subject to the same authority requirement and to defenses available under the contract.
For an undisclosed principal, both the principal and agent are ordinarily parties when the agent acted with actual authority. The agent’s actual authority can bind a principal even though the third party did not know the principal existed. The agent remains liable because the third party believed it was contracting with the agent.
There are limits. The parties can agree that only the agent will be liable. Also, an undisclosed principal may not enforce the contract, or may not be able to substitute itself without consequence, when the third party intended to contract only with the agent or when the principal’s participation would materially change the third party’s performance or rights. These are contract-specific exceptions.
Use this sequence because authority and disclosure answer different questions:
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A purchasing agent for Harbor, Ava was authorized to buy one specialized machine from Supplier.
Harbor’s identity and Ava’s agency were disclosed to Supplier before the contract was signed.
Ava secretly accepted a $5,000 payment from Supplier for directing the purchase to Supplier.
The machine was fairly priced, Harbor received exactly the machine it authorized Ava to buy, and Harbor never consented to Ava’s payment.
The purchase contract contained no provision making Ava personally liable.
Practice
Which two statements are most accurate?
| (A) Harbor is not bound because Ava’s secret payment made Ava’s conduct unauthorized. | (B) Ava is not personally liable on the purchase contract merely because Harbor was disclosed and the purchase was authorized. | (C) Ava breached her duty of loyalty by accepting a material benefit from Supplier without Harbor’s informed consent. | (D) Supplier may recover the $5,000 from Ava only if Harbor proves that the machine was overpriced. | (E) Ava’s secret payment changed Harbor’s status from disclosed to partially disclosed. | (F) Harbor automatically owes nothing on the contract because Ava breached her fiduciary duty. | |
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| Your answers |
Three Fast Decisions: Care, Loyalty, and Disclosure
Practice
Mira was an agent for a gallery and was responsible for storing a valuable sculpture overnight. She left it outside an unlocked loading area despite an available locked storage room, and the sculpture was stolen. Which result is most accurate?
Leo purchased supplies for PrincipalCo and told the supplier he was acting for a client but did not identify PrincipalCo. PrincipalCo had authorized the purchase, and the supplier later demanded payment from both Leo and PrincipalCo. Who is most accurate?
Priya was a sales agent for a manufacturer and received a private commission from a distributor for steering the manufacturer’s order to that distributor. The manufacturer knew the order was fairly priced but did not know about Priya’s commission. Which result is most accurate?
High-Yield Points - ⚡ Biggest Takeaways
Apply ordinary reasonable-agent care unless a partnership or LLC statute supplies its heightened threshold. Treat every undisclosed material benefit connected with the agency as a loyalty danger, even after a fair transaction. Classify disclosure first: disclosed usually protects the agent, while partially disclosed and undisclosed principals ordinarily leave both principal and agent liable.
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