October 13, 2026 · Real Estate, Explained · Blake Sherwood
What Is Dual Agency? Dual vs. Designated Agency in Massachusetts, Explained
Facts last verified September 24, 2026.
Dual agency occurs when a single real estate agent — or a single brokerage — represents both the buyer and the seller in the same transaction. In Massachusetts, dual agency is legal, but only with the informed written consent of both parties obtained before the arrangement begins. Because one agent cannot fully advocate for two sides at once, the Commonwealth also recognizes a practical alternative called designated agency, which most brokerages use today.
How It Works in Massachusetts
Massachusetts agency relationships are governed by M.G.L. Chapter 112, Sections 87AAA through 87DDD½, with day-to-day rules in 254 CMR 3.00, enforced by the Board of Registration of Real Estate Brokers and Salespersons.
The first thing you will notice in any Massachusetts transaction is the Mandatory Licensee-Consumer Relationship Disclosure form. An agent must provide this notice at the first personal meeting to discuss a specific property — not at the offer stage. The form is not a contract; it is a disclosure for your protection. Open houses are exempt from the individual written-form requirement: a conspicuously posted sign or distributed listing sheet disclosing the pre-existing agency relationship satisfies 254 CMR 3.00 for open-house attendees. A private showing, however, triggers the full written disclosure.
The form explains six possible relationships:
| Relationship | Who they represent | Full fiduciary duties? | Advocacy in negotiation? |
|---|---|---|---|
| Seller’s agent | Seller only | Yes | Yes, for seller |
| Buyer’s agent | Buyer only | Yes | Yes, for buyer |
| Designated seller’s agent | Seller only (within a brokerage) | Yes | Yes, for seller |
| Designated buyer’s agent | Buyer only (within a brokerage) | Yes | Yes, for buyer |
| Dual agent | Both parties — neutrally | Limited | No |
| Facilitator | Neither party | None | No |
Is Dual Agency Legal in Massachusetts?
Yes — dual agency is legal in Massachusetts, but only with the informed written consent of both the buyer and the seller, obtained before the arrangement begins. Undisclosed dual agency is illegal, and failure to obtain consent gives either party grounds to rescind the transaction.
Once dual agency is in place, the agent’s role changes fundamentally. A dual agent must remain neutral: they cannot tell the buyer the seller’s bottom line, and cannot tell the seller how high the buyer is willing to go. The duties of loyalty, full disclosure, and obedience to lawful instructions are limited — but the duty of confidentiality and the duty to account for funds survive.
Consent may be given in a listing agreement, a buyer agency agreement, or a stand-alone consent form. If consent is obtained before a specific property is identified, a separate Notice of Dual Agency must also be provided after the listed property is first shown to the buyer and before the parties sign a written purchase agreement.
What Is Designated Agency?
Designated agency allows a brokerage to appoint one agent to represent the seller and a different agent within the same office to represent the buyer — so each client has a dedicated advocate who owes them full fiduciary duties, rather than the neutrality required in dual agency.
Here is the key statutory wrinkle: when a brokerage appoints designated agents for both sides, the managing broker is presumed to be a dual agent and stays neutral — but your individual agent is not. Your agent’s knowledge of your situation does not flow to the other side of the office; information known or acquired by a designated agent is not imputed to the appointing broker or to other affiliated licensees.
North Shore worked example
Imagine North Shore Realty. Agent A has the listing for a Salem colonial. Agent B, at the same firm, represents a buyer who wants to make an offer on that property.
Under designated agency: Agent A represents the seller with full loyalty; Agent B represents the buyer with full loyalty. The managing broker is presumed a dual agent and stays neutral. Both clients sign a designated agency consent and each has a true advocate.
Under true dual agency: Agent A represents both sides. Agent A cannot advise either party on price strategy, cannot share the seller’s motivation with the buyer, and cannot share the buyer’s ceiling with the seller. Both clients sign a dual agency consent. Neither client has a true advocate.
Designated agency is almost always the better outcome for both parties.
What Is a Facilitator?
A facilitator — sometimes called a non-agent or transaction broker — assists a buyer, seller, or both without representing either party in a fiduciary capacity. A facilitator must act honestly and disclose known material defects, but owes no duty of loyalty or confidentiality unless specifically agreed upon in writing. Facilitators are relatively rare in residential transactions; most buyers and sellers are better served by a designated agent.
Should I Agree to Dual Agency?
For most buyers and sellers, agreeing to true dual agency means giving up your agent’s undivided loyalty. That said, the decision is yours. It can be manageable when both parties are experienced, the transaction is straightforward, and both sides have independent legal counsel reviewing the Purchase and Sale Agreement. Massachusetts is an attorney-closing state, so a real estate attorney will be involved in any mortgage transaction regardless.
Before signing a dual agency consent, ask yourself three questions: Do I know what price I am willing to accept or pay, and am I comfortable that my agent cannot help me negotiate toward it? Do I have a real estate attorney who can review the Purchase and Sale Agreement? Is there a designated agency option available — meaning a different agent at the same firm could represent me instead? If the answer to that last question is yes, designated agency is almost always the cleaner choice.
FAQ
Can one agent represent both the buyer and seller in Massachusetts?
Yes, but only with the express informed written consent of both parties, obtained before any offer to purchase is signed. Without that written consent, dual agency is illegal under M.G.L. Chapter 112 and 254 CMR 3.00.
What happens if I refuse to sign the agency disclosure form?
The agent must note your refusal in writing, with the date and method of delivery. Your refusal does not void the transaction, but you proceed without a clear record of what relationship was established — which is not in your interest.
Is designated agency the same as dual agency?
No. In designated agency, two separate agents each owe full fiduciary duties to their own client. In dual agency, a single agent represents both sides and must remain neutral. The managing broker in a designated agency arrangement is presumed a dual agent, but your individual agent is not.
What does a dual agent have to keep confidential?
A dual agent must keep each party’s confidential information separate — they cannot tell the buyer the seller will accept less than the listing price, or tell the seller the maximum the buyer will pay. The duty of confidentiality survives even when full advocacy does not.
Have questions about agency relationships before you start your search or list your home? Reach out to the Sherwood & Company team — we are happy to walk through what representation looks like and which arrangement makes sense for your situation.
Last verified: 2026-09-24. Agency rules cited from M.G.L. Chapter 112, Sections 87AAA–87DDD½ and 254 CMR 3.00, as published by the Massachusetts Board of Registration of Real Estate Brokers and Salespersons. Statutory text confirmed current as of January 1, 2025 (Findlaw); no amendments to the agency sections of Ch. 112 appear in the mass.gov legislative table through the post’s publication date.