What Is Dual Agency in California Real Estate?

Dual agency exists when the same real estate broker represents both the buyer and the seller in one transaction. It also exists, less obviously, when the buyer and seller work with different salespersons who hang their licenses at the same brokerage, because the fiduciary duty belongs to the brokerage itself. The California Supreme Court confirmed that rule in Horiike v. Coldwell Banker.

California permits dual agency only with disclosure on the statutory agency forms and the informed written consent of both parties. The statute draws one hard line: without express written permission, a dual agent may not tell the buyer the seller will accept less than the listing price, and may not tell the seller the buyer will pay more than the offer. An undisclosed dual agency is a fiduciary breach from the outset and can cost the broker the entire commission.

The structural problem never goes away: one fiduciary cannot negotiate hard for two opposing principals. Disputes tend to involve leaked price confidences, concealed defects, and same-firm deals where information never crossed the hallway.

What Dual Agency Permits, and What It Does Not

Dual agency arises when one broker, or two salespeople under the same broker, represents both the buyer and the seller in the same transaction. California permits it, but only with the informed written consent of both parties, and the arrangement narrows what the agent may lawfully do for either side.

A dual agent still owes both parties the duty of honest and fair dealing and the duty to disclose material facts about the property. What the dual agent may not do is advocate for one side against the other on price or terms, which is the very thing most clients assume they are buying.

The Confidentiality Limit That Surprises Clients

The Civil Code is explicit on the point that generates the most complaints. Without express written permission, a dual agent generally may not tell the buyer that the seller will accept less than the listing price, and may not tell the seller that the buyer will pay more than the offered price.

Everything else material about the property's condition still must be disclosed. So the dual agent is simultaneously required to disclose defects to the buyer and forbidden to disclose the seller's bottom line. Clients who did not understand that division before signing the consent are the ones who later feel the arrangement cost them money.

When Dual Agency Becomes a Claim

Litigation typically follows one of three failures. The agency relationship was never properly disclosed in writing at the times the statute requires. The consent obtained was not informed, because the practical consequences were never explained. Or the agent, in substance, favored one side, usually the one paying the larger commission.

California requires delivery of a statutory agency disclosure form and confirmation of the agency relationship, and the paper trail is usually decisive. Where a transaction also involved concealed property defects, dual agency claims are frequently pleaded alongside real estate fraud claims.