Agent, Principal, Client and Customer in New York Real Estate

The exam question hidden inside these labels is simple: Who does the licensee represent? Answer that before deciding which information may be shared, whose instructions control or which interest the agent must advance.

Official source map

The New York Department of State's 77-hour curriculum makes “Client or customer: Who does the agent represent?” a central Law of Agency objective. Real Property Law section 443 defines an agent for its residential agency-disclosure rules and prints the duties and explanations inside the required forms. Title 19 NYCRR section 175.7 addresses compensation from more than one party and the duty to make clear for which party the broker is acting. Department legal guidance explains the fiduciary nature of the agent-principal relationship. Sources were checked on August 27, 2026.

The four terms in one view

“Principal” and “client” usually identify the same represented party from different angles. “Principal” describes the legal role in the agency relationship. “Client” is the practical brokerage word for the represented consumer.

Start with representation, not property position

A seller is not automatically the broker's client merely because the seller owns the property. A buyer is not automatically a customer merely because the property is listed.

Representation depends on the agency relationship.

• A seller represented by the listing brokerage is that brokerage's principal and client.
• A buyer working with the seller's agent without buyer representation is a customer of that agent.
• A buyer represented by a buyer's agent is that brokerage's principal and client.
• A seller dealing with the buyer's agent is a customer of that agent.
• A landlord represented by a listing agent is the client.
• A tenant represented by a tenant's agent is the client.

The transaction label tells you what the person wants to do. The agency label tells you whose side the agent represents.

What is a principal?

A principal gives authority to an agent to act on the principal's behalf and subject to the scope of that authority. In a typical listing relationship, the seller or landlord is the principal. In a buyer-broker or tenant-agency relationship, the buyer or tenant is the principal.

The principal-agent relationship is fiduciary. That means the agent's role is built on trust and requires the agent to place the principal's interests ahead of the agent's conflicting self-interest within the scope of the agency.

A principal is not necessarily the person paying

Avoid using the source of compensation as your only test for representation. Payment and agency are related facts, but they are not identical.

Real Property Law section 443 asks which role the licensee has undertaken. Title 19 NYCRR section 175.7 separately controls compensation from more than one party and requires full knowledge and consent. A cooperative compensation arrangement does not by itself turn the cooperating licensee into the payer's agent.

For exam purposes, use the agreement, conduct, disclosure and stated role to identify the principal. Then analyze compensation under its own rule.

What is a client?

A client is the represented party. The client and principal are therefore usually the same person in an exam scenario.

The client is entitled to the agent's fiduciary performance. Section 443's residential disclosure form names six core duties:

• reasonable care
• undivided loyalty
• confidentiality
• full disclosure
• obedience
• duty to account

Students often remember them as “OLD CAR”:

• Obedience
• Loyalty
• Disclosure
• Confidentiality
• Accounting
• Reasonable care

The memory aid is useful only if you can apply each duty to facts.

Obedience

The agent follows the principal's lawful instructions within the scope of the agency. A client cannot authorize discrimination, concealment that violates law or another unlawful act.

Loyalty

The agent avoids putting personal gain or another party's interest ahead of the principal's interest. Secret profits, undisclosed self-dealing and undisclosed adverse representation raise loyalty problems.

Full disclosure

The agent gives the principal material information known to the agent that could affect the principal's decisions, subject to applicable law and the agent's other duties.

Confidentiality

The agent protects confidential information received through the relationship. An exam may test whether revealing a client's motivation, bargaining limit or private circumstances would weaken that client's position.

Accounting

The agent accounts for money and property entrusted to the agent. Deposits, documents and other property are not the agent's personal funds or materials.

Reasonable care

The agent uses the skill, care and diligence expected in performing authorized brokerage duties. This is not permission to give legal, tax, engineering or other advice outside the licensee's competence.

What is an agent?

Agency is a relationship, not merely a license title. Section 443 defines “agent” for its residential disclosure provisions as a licensed broker, associate broker or salesperson acting in a fiduciary capacity.

This means a licensee can be present in a transaction without representing every person the licensee meets. Section 443 also recognizes that a licensee may work with a buyer, seller, landlord or tenant in an agreed capacity other than as an agent.

The brokerage relationship and the salesperson's role

The representative broker holds the brokerage relationship. A salesperson works for and is supervised by that broker and acts as the representative broker's agent. When the salesperson works with a seller client or buyer client, the salesperson performs the brokerage's duties through that structure.

Do not create a separate personal agency just because the consumer speaks mainly with the salesperson. The current broker association remains central.

Authority has a scope

An agent may have authority to market property, locate property, present offers, negotiate or perform other agreed tasks. Authority does not make the agent the owner, attorney or decision-maker for every issue.

The principal makes the principal's decisions. The agent advises and acts within the authority granted.

If a scenario says the agent accepted an offer for the seller without authority, changed a material term or promised a legal result, ask whether the act exceeded the agent's authority.

What is a customer?

A customer is a transaction participant whom the agent does not represent. The customer may receive information, showings, forms and administrative assistance, but should not assume that the agent is protecting the customer's negotiating position as a fiduciary.

For example, a buyer who attends a listing agent's open house may be a customer of the seller's agent. The agent represents the seller unless a different lawful agency relationship is created and disclosed.

A customer is still owed duties

“Not a client” does not mean “no duties.” Section 443's residential disclosure forms state that an agent dealing with the other side should:

• exercise reasonable skill and care in performing the agent's duties
• deal honestly, fairly and in good faith
• make the disclosures described in the form, subject to law and the agent's fiduciary duties

The exact third duty differs with the side represented. A seller's agent deals with known facts materially affecting the property's value or desirability, except as otherwise provided by law. A buyer's agent deals with known facts materially affecting the buyer's ability or willingness to perform that are not inconsistent with duties to the buyer.

This is why “tell the customer everything” is not a safe rule. The agent must deal honestly without betraying the client.

Client duty and customer duty are not equal

The customer's safer exam question is: “What can this licensee do honestly without compromising the client?”

Agency disclosure is not an agency contract

The New York residential agency-disclosure form says “THIS IS NOT A CONTRACT.” Its purpose is to explain the licensee's role and document the required disclosure and acknowledgment.

A signed disclosure form does not by itself create every term of a listing agreement, buyer representation agreement or other agency contract. Likewise, signing an acknowledgment of receipt does not turn a customer into the agent's client merely because the customer signed a form.

Keep these functions separate:

1. the agency agreement or conduct creates and defines the relationship
2. the disclosure form explains and records the role for section 443
3. the brokerage agreement addresses authority, services and agreed business terms

The exact creation of agency can involve express agreement, conduct, ratification or estoppel. Those doctrines deserve their own analysis. The immediate exam habit is to avoid treating a disclosure acknowledgment as automatic representation.

Seller, buyer, landlord and tenant patterns

Seller's agent

The seller is the principal and client. The buyer is a customer of the seller's agent unless represented or another agency structure applies. The seller's agent seeks a buyer on terms acceptable to the seller and owes fiduciary duties to the seller.

Buyer's agent

The buyer is the principal and client. The seller is a customer of the buyer's agent. The buyer's agent locates property or presents and negotiates an offer on the buyer's behalf within the agreed role.

Landlord's agent

The landlord is the principal and client. The tenant is a customer of that agent unless represented or another agency structure applies.

Tenant's agent

The tenant is the principal and client. The landlord is a customer of the tenant's agent.

Dual agent

The same agent represents both sides in the same transaction. Both parties are principals and clients of the dual agent, but the agent cannot provide the full range of fiduciary duties to either. Section 443 requires informed consent in writing within its residential scope.

Dual agency is not a way to avoid identifying the principal. It means there are two principals whose interests may conflict, which is exactly why disclosure and informed consent matter.

Broker's agent

Section 443 defines a broker's agent as a licensee who cooperates with or is engaged by a listing agent, buyer's agent, landlord's agent or tenant's agent, is not in the same firm and assists that engaging agent. The broker's agent does not have a direct relationship with the principal and receives direction from the engaging agent.

Avoid confusing “broker's agent” with “buyer's agent” or with a salesperson who works for a broker.

A five-step method for agency questions

1. Name every person

Write the roles beside the facts: seller, buyer, landlord, tenant, broker, associate broker and salesperson.

2. Find the representation signal

Look for a listing agreement, buyer or tenant representation, a statement that the licensee acts on someone's behalf, or conduct that may create agency.

3. Name the client or clients

The represented principal is the client. Everyone else is not automatically a customer of every licensee, so keep the analysis tied to the specific agent.

4. Match the duty to the relationship

Is the question about loyalty, confidentiality, disclosure, obedience, accounting, care or fair dealing with the other side?

5. Check for conflict or changed role

Did the agent begin representing the other party too? Did the parties give the informed written consent required for dual agency? Did conduct contradict the disclosed role?

Four worked scenarios

Scenario 1: the buyer tells the listing agent a ceiling price

A buyer at an open house tells the listing agent, “I can pay $40,000 above asking, but please keep that between us.” The listing agent represents the seller.

The seller is the listing agent's client. The buyer is a customer of that agent, not the agent's principal. The buyer should not assume the seller's fiduciary will protect information that could materially affect the seller's negotiation. The correct first step is to identify representation before analyzing disclosure.

Scenario 2: the seller orders discrimination

A seller-client instructs the listing agent not to show the home to members of a protected class.

The seller is the principal, but obedience extends only to lawful instructions. The agent must not carry out unlawful discrimination. Client status does not turn an illegal instruction into an agent duty.

Scenario 3: the buyer's agent learns the seller has another offer

A buyer's agent lawfully learns information relevant to the buyer's negotiating decision.

The buyer is the principal and client. Full disclosure requires the agent to give the buyer material information within the relationship, subject to the source, accuracy and applicable law. The agent should not redirect the information to advance the seller's interests.

Scenario 4: the disclosure form is signed

A buyer signs an acknowledgment that the licensee is the seller's agent and then argues that the signature made the licensee the buyer's agent.

The form itself states that it is not a contract. The signature documents receipt of the disclosed role. Here, it confirms that the licensee represents the seller; it does not create buyer representation.

Common misconceptions

“The buyer is always the customer”

No. A buyer represented by a buyer's agent is that agent's principal and client.

“The person paying the commission is always the principal”

No. Identify representation independently from compensation. Cooperative compensation does not alone decide agency.

“A customer is owed nothing”

No. Honest, fair, good-faith and reasonably careful dealing still apply, together with the disclosures required by the relationship and law.

“A disclosure form creates the agency”

Not by itself. Section 443's form explains the role and says it is not a contract.

“A salesperson represents the consumer personally”

The salesperson acts through the representative broker's brokerage relationship and under that broker's supervision.

“A dual agent owes full undivided loyalty to both sides”

That is impossible where the interests conflict. The statutory form warns that a dual agent cannot provide the full range of fiduciary duties and explains the loss of undivided loyalty.

“Confidentiality means hiding a physical defect”

Avoid using one duty to erase another legal obligation. Analyze whether the fact is confidential negotiation information, a material property fact, a statutory exception or information that law requires to be disclosed.

Frequently asked questions

Are principal and client the same in real estate?

Usually, yes. The principal is the legal party who authorizes the agent; “client” is the practical term for that represented party.

What is the difference between a client and a customer in New York real estate?

A client is represented by the agent and is owed fiduciary duties. A customer is not represented by that agent but is still owed the honest, fair and careful treatment required by the relationship and law.

Can a buyer be a client?

Yes. A buyer represented by a buyer's agent is that agent's principal and client.

Can a seller be a customer?

Yes. A seller dealing with the buyer's agent is generally a customer of that agent, because the buyer's agent represents the buyer.

Who is the agent in a brokerage relationship?

Section 443 defines an agent for its purposes as a licensed broker, associate broker or salesperson acting in a fiduciary capacity. The salesperson performs the brokerage's work through the representative broker and under broker supervision.

What fiduciary duties does a New York real estate agent owe a client?

The residential disclosure form names reasonable care, undivided loyalty, confidentiality, full disclosure, obedience and the duty to account.

Does an agent owe confidentiality to a customer?

Do not promise a customer the fiduciary confidentiality owed to a client unless the relationship supports it. The agent must still deal honestly and comply with privacy law, fair-housing law and other applicable duties.

Does signing the New York agency disclosure form make someone a client?

No. The statutory form says it is not a contract. The signature acknowledges receipt of the disclosed agency role.

Can one agent have two principals in the same transaction?

That is dual agency. Within section 443's residential scope, both sides must give informed consent in writing, and the agent must explain the limitations of dual representation.

Is a broker's agent the broker who employs a salesperson?

No. “Broker's agent” is a defined agency role involving a licensee from a different firm who assists an engaging listing, buyer, landlord or tenant agent. It is not the generic relationship between a salesperson and the salesperson's broker.

What to do next

Use the Law of Agency study hub to connect these four roles to fiduciary duties, creation and termination. Read the broker and salesperson role guide for the licensing structure, then use the free practice sampler to identify the client before answering each agency scenario.

Sources and verification notes

The statutory roles, disclosure-form duties and curriculum terms were checked on August 27, 2026. “OLD CAR,” the comparison table and the five-step method are editorial study tools. Agency can turn on agreements, conduct and facts beyond a short exam prompt, so use current official law for real transactions.

1. New York Real Property Law section 443. Residential agency definitions, disclosure timing, form language, duties and written consent for dual agency.
2. New York State Department of State, Real Estate Salesperson 77-Hour Curriculum. Subject 2 objectives, including client versus customer, fiduciary duties and agency alternatives.
3. New York State Department of State, Legal Memorandum LI12: Be Wary of Dual Agency. Department explanation of the fiduciary agent-principal relationship and dual-agency risk.
4. New York State Department of State, Real Estate License Law booklet. Article 12-A and Title 19 NYCRR regulations, including sections 175.7 and 175.21.
5. New York Real Property Law section 440. Broker, associate broker, salesperson and association definitions.
6. New York State Department of State, Real Estate Salesperson Frequently Asked Questions. Representative-broker supervision and listing relationship.

This article provides general educational guidance. It does not reproduce live examination content or provide legal advice.