What single agency is
Single agency means the brokerage represents one side only. Here is what it obligates, and what it means for the other party in the room.
One client per transaction
The firm takes the buyer or the seller, never both. The other side is handled by a different brokerage, or is unrepresented and treated as a customer. Because loyalty is undivided, nothing about the arrangement has to be reduced, disclosed away or supervised behind a barrier.
The full fiduciary set
Six duties attach to the client and stay intact for the life of the relationship. Each one has a plain operational meaning, and each one is a place where files get judged after the fact.
The six fiduciary duties, and what each one means in practice
| Duty | Operational meaning |
|---|---|
| Loyalty | Put the client's interest first, ahead of the agent's own commission and the other party's position |
| Confidentiality | Never disclose motivation, price flexibility or financial position, including after closing |
| Obedience | Follow the client's lawful instructions, including instructions the agent disagrees with |
| Disclosure | Tell the client every known material fact affecting their decision, favorable or not |
| Reasonable care | Perform with the skill of a competent licensee, including meeting deadlines and preparing documents correctly |
| Accounting | Handle money and documents properly, evidence receipt and deposit, and report on both |
Representative of common state agency law as of 2025. Duty names and definitions vary by state. Not legal advice.
Confidentiality outlasts everything
The duty that most often gets forgotten is the one with no end date. A former client’s motivation, ceiling and financial position stay confidential after closing and after the agreement expires, including when that person turns up on the other side of a later transaction.
How it relates to the other arrangements
Single agency is the baseline. Dual agency reduces these duties, and designated agency preserves them by splitting the sides between two licensees. The dual agency guide covers what gets given up when a firm takes both sides.
What the unrepresented party gets
Honesty, fair dealing and disclosure of known material defects. That is the customer standard, and it stops short of advice.
Client compared with customer
| What they receive | Client | Customer |
|---|---|---|
| Advice on price and terms | Yes | No |
| Advocacy in negotiation | Yes | No |
| Confidentiality of their information | Yes | No |
| Disclosure of known material defects | Yes | Yes |
| Honesty and fair dealing | Yes | Yes |
| Accurate factual answers about the property | Yes | Yes |
| Timely presentation of offers | Yes | Yes |
| Agent acts in their interest | Yes | No |
Customer is a real status
A customer is entitled to accurate answers and to be told about known problems with the property. An agent who conceals a defect from an unrepresented buyer has a problem no agency arrangement fixes, because honesty is owed to everyone regardless of representation.
Where the line sits
Explaining what a contingency clause says is factual and available to a customer. Telling them what to offer, or that the seller would take less, is advocacy that belongs only to a client. Agents get into trouble by drifting across that line out of helpfulness rather than intent.
Say it plainly and early
Unrepresented buyers routinely believe the agent showing them a house works for them. A short, dated written acknowledgment that the firm represents the seller solves the misunderstanding while it is still cheap, and gives the file something to point at later.
The disclosure form does this
Most states publish a form that names who represents whom. Getting it signed at the right moment is the underlying step in every arrangement, and the guide on agency disclosure forms and when they get signed covers the timing rules.
Single agency as brokerage policy
Some firms practice single agency by choice and refuse dual agency even where the state permits it.
What the policy buys
An entire class of complaint disappears. No arguments about whether consent was informed, no allegations that price flexibility leaked, no need to prove an information barrier held between two agents who sit ten feet apart. For a small firm without the depth to designate credibly, that is a meaningful reduction in exposure.
What it costs
The referred-out side of every in-house match. A referral typically returns a portion of the other side rather than all of it, so the policy has a price, and firms that adopt it are choosing predictability over that margin.
The referral path
Have receiving brokerages identified in advance. A firm that decides where to refer while a buyer is standing in an open house makes a worse choice than one working from a short list agreed at the policy level.
Say it in marketing carefully
Single agency is a legitimate differentiator and it is worth stating factually. Describe the firm’s own practice and avoid characterizing what other brokerages do, because agency arrangements are lawful choices and comparisons drawn badly invite a different kind of complaint.
What it means operationally
One side per file, a conflict check at intake, and a disclosure that states the arrangement.
Conflict check at intake
- 1
New party inquires
Capture the property, the side they are on, and who else they have spoken to at the firm
Move to the relationship check
- 2
Existing relationship check
Search live and recent files for the property, the counterparty, and the individual by name
Clear, or conflict identified
- 3
Clear
No opposing relationship exists inside the brokerage
Represent: agency disclosure, then representation agreement
- 4
Conflict identified
The firm already represents the other side of this transaction
Refer out: referral agreement, and a written note that the firm represents the other party
- 5
Conflict plus no referral fit
No suitable receiving brokerage, or the party declines a referral
Decline: written statement that the firm represents the other side and cannot advise them
Check by property and by person
Searching the address alone misses the case where the firm already represents the individual on a different transaction that interacts with this one. Check the property, the counterparty names and the individual, across live files and recently closed ones.
Make it a step, not a memory
Conflict checks fail when they depend on someone recalling what a colleague is working on. Brokerages that run conflict checks at file intake as a required step catch the overlap on the day it appears rather than the week the offer is written.
Record the negative result
A conflict check that found nothing is still worth logging with a date and a name. It is the only evidence that the check happened at all, and it takes one field.
Recheck at offer
Relationships change during a transaction. A second check when the offer is written catches the case where the firm picked up the other side after intake, which is the version nobody sees coming.
The file
Three records prove single agency was practiced as claimed.
Agency disclosure marked correctly
The form should show the single agency box selected, the represented party named, and a date that precedes the first substantive representation conversation. A disclosure with no box marked is treated as no disclosure.
Representation agreement that matches
The signed agreement, the disclosure and the file itself all have to name the same client. A file where the disclosure says seller and the agreement is with the buyer is the kind of internal contradiction an examiner finds quickly.
Referral records for routed conflicts
When a conflict sends a party out, keep the referral agreement and the written note that the firm represents the other side. That pair turns a policy statement into a documented practice, and it is what supports the firm’s position if the referred party later complains.
Run the same reviews
Single agency files still get the open review and the pre-closing review described in the broker file review guide. A simpler arrangement produces a shorter checklist, and it does not remove the supervision duty.
Questions brokers ask
What is single agency in real estate?
An arrangement where the brokerage represents one party in a transaction and only that party. The buyer or the seller is the client, the other side is either unrepresented or represented by a different firm, and the full set of fiduciary duties runs to the one client without division. It is the default arrangement in most transactions and the baseline against which dual agency and designated agency are defined.
What duties does a single agent owe?
Six: loyalty, confidentiality, obedience to lawful instructions, disclosure of known material facts, reasonable care and skill, and accounting for money and documents. Loyalty means putting the client's interest ahead of the agent's own and ahead of the other party's. Confidentiality survives the end of the relationship. Disclosure covers anything known that affects the client's decision, including facts the client would rather not hear.
What does the other party get from a single agent?
Honesty, fair dealing, and disclosure of known material defects in the property. That is the customer standard, and it is meaningful protection. What the customer does not get is advice, advocacy, confidentiality, or an agent working to improve their position. A single agent can answer factual questions for the other side and cannot help them negotiate against their own client.
Why do some brokerages only practice single agency?
Because it removes an entire category of complaint. A firm that never holds both sides never argues about whether consent was informed, whether price flexibility leaked, or whether an information barrier held. The cost is the referred-out side of in-house matches, which is real revenue. Firms that make the trade usually decide the referral fee plus the reduced liability is worth more than the second side of a deal.
What happens when both parties want the same single-agency brokerage?
One side gets referred to another firm, usually with a referral agreement and a fee. The brokerage keeps the relationship it established first, tells the second party plainly that it cannot represent them, and documents the referral. In a strict single agency firm this decision is made by policy at intake rather than negotiated case by case, which is what keeps it consistent.