When one brokerage represents both buyer and seller: multiple representation in Ontario

You find a home you love, call the number on the sign, and the listing agent offers to help you buy it. Before you say yes, it is worth understanding what that arrangement actually means.

In Ontario, when one brokerage represents more than one client in the same trade, such as the seller and the buyer of the same home, it is called multiple representation. It is legal, it is common, and it can work well. But it changes what the brokerage can do for you, and the Trust in Real Estate Services Act (TRESA), administered by the Real Estate Council of Ontario (RECO), sets specific rules around it.

I spent years as a Broker of Record reviewing exactly these files. The problems I saw rarely came from bad intentions. They came from clients who did not fully understand what they had agreed to. This note is meant to fix that before you sign.

Representation comes first, and it should be in writing

Under TRESA, when a brokerage represents you, you are its client, and it owes you duties that include acting in your best interests, avoiding conflicts, and protecting your confidential information. Before you enter a representation agreement, the brokerage must give you RECO's Information Guide, which explains your options in plain language.

You generally have three options when you deal with a brokerage on a purchase or sale: be its client with full representation, be a self-represented party with no representation, or agree to multiple representation where the brokerage acts for you and another client in the same trade.

What multiple representation means

Multiple representation is when a single brokerage represents two or more clients whose interests are involved in the same transaction. The most common example is a brokerage representing both the seller and the buyer of one property. It can also happen when a brokerage represents two buyers who want the same home.

A brokerage cannot simply slide into this arrangement. It must disclose the situation and obtain each client's consent in writing before acting for more than one of them in the trade.

What changes when one brokerage acts for both sides

When the brokerage represents both you and the other party, it still owes duties to each of you, but it cannot favour one client over the other. In practice, that means the brokerage cannot share one client's confidential information with the other, such as how high a buyer is willing to go, how low a seller would accept, or why either side needs to move. It also cannot push the other side on price in the way a brokerage acting only for you could.

You still receive service and information, but the advocacy on price and terms is more limited. For some clients, that is perfectly acceptable. For others, especially in a competitive or emotional purchase, it matters a great deal.

Teams and designated representation

On larger teams and brokerages, the listing agent and the buyer's agent may work under the same brokerage, sometimes on the same team. Some brokerages use designated representation, where specific agents are assigned to each client. It comes with its own rules about who represents you and how confidential information is protected inside the brokerage.

You do not need to memorize the framework. You need to know which model applies to your transaction, who is representing you, and what that person can and cannot do. Ask for that in writing.

The self-represented option

You can also choose not to be represented at all. If you are a self-represented party, the agent you are dealing with does not act for you and cannot give you advice or recommendations. You will be asked to acknowledge that in writing. This can work for experienced buyers and sellers, but it means you are negotiating, reviewing terms, and managing risk on your own.

When multiple representation can make sense

Multiple representation is not automatically a bad idea. It can work when both parties already agree on the main terms, when the deal is straightforward, or when a client values speed and a single point of contact. It is harder to justify when price negotiation is the main event, when there are competing offers, or when you want someone clearly in your corner on conditions and closing terms.

Questions to ask before you consent

• Who at the brokerage represents me, and who represents the other party?
• Is this multiple representation, designated representation, or am I self-represented?
• What exactly will you do for me, and what will you not be able to do?
• What information about me will stay confidential?
• How is the brokerage being paid on this transaction, and by whom?
• Will anything about the compensation change because you represent both sides?
• Can I choose separate representation instead, and what would that look like?

A good agent will welcome these questions. If the answers feel rushed or vague, slow down. The right time to understand your representation is before the offer, not after it is accepted. For more on preparing an offer, see what first-time buyers should know before their first offer and the buyer guide.

This note is general information about Ontario practice under TRESA and is not legal advice. RECO's Information Guide and your own lawyer are the right sources for questions about a specific transaction.