Short answer: the trigger isn't "is it the same person helping both sides" — it's "is it the same broker." Under the Texas Real Estate License Act (TRELA), representation legally runs through the sponsoring broker, not the individual sales agent. So intermediary status kicks in the moment one broker ends up representing both the buyer and the seller in the same transaction, regardless of whether that's literally one agent talking to both parties or two different agents under that broker's umbrella — one working the listing, one working the buyer.
The statute: Texas Occupations Code §1101.559
Section 1101.559(a) of the Occupations Code says a broker "may act as an intermediary between the parties to a real estate transaction if the broker obtains written consent from each party for the broker to act as an intermediary." That written consent has to state the source of any expected compensation to the broker. Section 1101.559(b) lets a written listing agreement or buyer representation agreement double as that consent, as long as it spells out — in conspicuous bold or underlined print — the conduct prohibited under §1101.651(d) (more on that below).
Section 1101.559(c) sets the standard once intermediary status attaches: "An intermediary shall act fairly and impartially." Neither party gets a full-loyalty advocate anymore — that's the fundamental shift from single-agent representation.
Same agent vs. two agents at the same brokerage — both trigger it
This is the part agents most often get wrong. It does not matter whether:
- One sales agent is personally working with both the buyer and the seller (a true "dual agent" scenario), or
- Two different sales agents — say, the listing agent and a buyer's agent — are both sponsored by the same broker, even if they've never spoken to each other about the deal.
Either way, the broker is representing both sides, and §1101.559 requires intermediary status and written consent before that dual representation can proceed. This is the scenario Texas agents usually call an "in-house" transaction, and it's exactly why brokerages build intermediary consent language into their standard listing agreements and buyer representation agreements up front, per §1101.559(b) — so it's already in place if an in-house match happens later.
Appointed license holders: what changes when there are two agents
Section 1101.560 lets a broker who has the required §1101.559 consent appoint one associated license holder to communicate with and carry out the instructions of one party, and a different associated license holder to do the same for the other party — as long as the written consent authorizes appointments and the broker gives written notice of the appointment to everyone involved. Under §1101.560(c), an appointed license holder may "provide opinions and advice during negotiations to the party to whom the license holder is appointed." That's a meaningful concession: each appointed agent can still coach their own client on strategy and price, even though the broker overall is neutral.
Contrast that with a single agent acting as intermediary for both parties alone, with no appointment made. That agent doesn't get the benefit of §1101.560(c) — there's no "party to whom the license holder is appointed" distinct from the other party. Practically, that agent has to stay a strictly neutral conduit: relay offers and information, but not advise either side on negotiating strategy, since doing so for one party without appointment authority undercuts the impartiality §1101.559(c) requires.
What an intermediary (appointed or not) can never do
Section 1101.651(d) sets hard limits that apply regardless of the appointment structure. A broker or license holder acting under intermediary status may not:
- Disclose to the buyer or tenant that the seller or landlord will accept a price less than the asking price, without separate written authorization from the seller/landlord;
- Disclose to the seller or landlord that the buyer or tenant will pay a price greater than what's in a written offer, without separate written authorization from the buyer/tenant;
- Disclose confidential information, or anything a party has instructed in writing not to disclose (subject to narrow exceptions — court order, legal requirement, or a duty to disclose material property conditions);
- Treat any party to the transaction dishonestly; or
- Otherwise violate Chapter 1101.
The disclosure that has to happen before any of this
Before intermediary status can even become relevant, §1101.558(b) requires a license holder to disclose — orally or in writing — who they represent, at first contact with another party or with another license holder representing another party. TREC's promulgated Information About Brokerage Services (TREC No. IABS 1-0) form is how that disclosure typically gets delivered in writing; it explains the ways a broker can represent a party (including as an intermediary) and lays out the license holder's basic duties. It generally isn't required for short residential leases under a year with no sale involved, when the license holder is meeting a party already known to be represented, or at an open house about that specific property (§1101.558(c)).
Where a licensed Texas attorney should weigh in
This page covers the general TRELA framework. If you're mid-transaction and unsure whether intermediary consent was properly obtained, whether an appointment was validly made, or whether a specific disclosure you made (or didn't make) crossed a §1101.651(d) line, that's a fact-specific question for TREC's legal staff or a licensed Texas real estate attorney — not something to resolve from a general explainer.