The Hidden Danger of Dual Agency: When Your Real Estate Agent Works for the Seller Too

You walk into a house you’ve seen online, fall in love with the kitchen, imagine your furniture in the living room. The agent showing you around seems helpful, points out the updated windows, mentions the roof is five years old. What this agent may not tell you is that they are also representing the seller. In legal terms, that’s called dual agency. In plain language, it means the same person is trying to get the best deal for you and for the person on the other side of the table at the same time. That is a conflict of interest so deep that it should set off every alarm bell you have. Dual agency is legal in some states, but it is almost never a good idea for a buyer or a seller, and it is one of the most common forms of broker misconduct that costs middle‑class Americans real money.

When you hire a real estate agent, you expect loyalty. The agent owes you a fiduciary duty, meaning they must put your interests above everyone else’s, including their own. That duty includes telling you everything they know about the property, negotiating the lowest possible price for you, and keeping your financial details confidential. The moment an agent agrees to represent both buyer and seller, that duty splits. They cannot negotiate aggressively on your behalf because they have to be fair to the other side. They cannot disclose information that could hurt the other party. In practice, dual agents often steer both sides toward a quick middle‑ground deal so they can collect a double commission. That commission, by the way, is often larger than what they would make representing only one side, so the incentive to push for a fast compromise is huge.

Let’s talk about how dual agency actually plays out. You are the buyer. You tell the agent your absolute top budget is three hundred thousand dollars. Under dual agency, that agent is allowed to share that number with the seller? No, but many do it anyway through subtle hints, and proving it later is almost impossible. The seller, also represented by the same agent, might be told your financing is shaky or that you are in a hurry to close. That information, intended to be confidential, can be used to pressure you into paying more or accepting unfavorable terms. Alternatively, the agent might simply avoid telling you about a major defect in the house because revealing it would hurt the seller and blow up the deal. You would never know, because the agent is not legally obligated to point out problems that could be considered “opinion” or “market evaluation.” The end result is that you buy a house for more than it is worth, or you accept repairs that never get done, or you sign a contract that favors the seller in ways you do not understand until it is too late.

Older Americans, especially those aged forty‑five to sixty‑four, are prime targets for this kind of misconduct. You may be downsizing, buying a retirement home, or helping an adult child purchase a first house. You have saved for years. You trust professionals. You might assume that a licensed real estate agent is ethically bound to tell you the truth. That assumption is dangerous. In many states, dual agency is not only legal, it is practiced without clear disclosure. You might sign a form that says “potential conflict of interest acknowledged,” but that form is often buried in a stack of paperwork. You sign it without reading. The agent never says, “By the way, I am now working for both of you, so I cannot fight for you the way I would if I were on your side only.”

How do you spot this before it costs you? The first red flag is an agent who shows you their own listing. When an agent says, “I have a great house that just came on the market, let me show it to you,” ask immediately: “Who do you represent in this transaction?” If the answer is anything other than “I represent you, the buyer,” or “I am a transaction broker with no loyalty to either side,” walk away. A good buyers’ agent will never show you their own listings unless they have a written agreement that you are a client and they are not also representing the seller. The second red flag is pressure to use the agent’s in‑house lender, title company, or home inspector. That is often a sign of a kickback arrangement, but it can also indicate that the agent wants to control the entire process to steer you into a dual‑agency scenario. Third, if the agent suggests that you do not need your own representation because “the seller is paying the commission anyway,” that is a lie. You always need your own representation. The commission is built into the price, and if you do not have your own agent, that money goes to the seller’s agent. You are not saving anything.

If you are selling a home, dual agency is equally dangerous. Your agent might tell a potential buyer that you are desperate to sell, that you will accept a lower offer, or that you have already moved out and are paying two mortgages. That information should never reach the buyer, but under dual agency it often does, sometimes without the buyer even realizing the source. The agent’s goal is to get the deal done, not to get you the highest price. Statistics from real estate studies have shown that homes sold under dual agency typically sell for less than homes where each side has independent representation. The difference can be tens of thousands of dollars.

What can you do? Before you start looking at houses, interview agents. Ask them directly: “Do you ever act as a dual agent? Under what circumstances?” If they say yes or even maybe, cross them off your list. Insist on a written representation agreement that explicitly states you are the agent’s only client in any transaction. If you are shown a home that the agent also represents, stop the conversation. Say, “I need to bring in my own buyers’ agent to handle this property.” That may feel awkward, but it is your right. You are paying a lot of money for this house. The agent’s commission comes out of that money. You deserve to have someone fighting solely for you.

Dual agency is not a service. It is a shortcut for agents who want to double their pay without doubling their work. For middle‑class Americans, especially those who are not real estate experts, it is a trap. Protect yourself by never letting the same person represent both sides. If an agent pushes back, find another agent. There are plenty of honest professionals who will happily sign an exclusive representation agreement. Your home is too important to trust to someone whose loyalty is split.