Who is liable for wrong MLS data?

Liability follows authorship. The listing brokerage that entered the record warrants its accuracy to the MLS; your obligation as a displaying site is to show the data faithfully as fed, current and complete, with the required notices attached. The exposure that actually reaches displaying agents is different: it comes from your own representations — the figure you repeated in advice, the claim you added on top of the feed. This page is general information, not legal advice; a real dispute belongs with your broker of record and your insurer.

The chain of responsibility, top to bottom

Every MLS record has an author. The listing brokerage gathers the facts, enters the record, and warrants it to the board under membership rules — square footage, taxes, lot size, the lot of it. The board compiles and distributes what members submitted; it maintains the system, not the truth of each field. Displaying members sit at the end: your data agreement obliges you to render what the feed carries without distortion, keep it fresh, and attach the prescribed attribution and disclaimers. That structure — covered from the ownership angle in who owns MLS listing data — is why an error usually traces cleanly to one desk, and why the displaying site is rarely that desk when it displayed faithfully.

What “deemed reliable, not guaranteed” actually does

The famous phrase is a provenance statement, not a magic ward. It tells the reader two true things: this information came from a source believed reliable (the MLS compilation), and the displaying party has not independently verified it. That framing matters legally because reliance is contextual — a reasonable buyer reading a labelled third-party feed is on notice to verify what matters before waiving conditions. It exists on virtually every compliant listing page because boards require it and because it accurately describes the arrangement. What it cannot do is convert a false statement you made yourself into a harmless one, and courts read it as the label it is, not as consent to be misled.

Where liability actually bites: your own words

The pattern in real disputes is consistent. Feed data displayed as-is, with notices: strong position. The same wrong number repeated in your listing description, your marketing copy, your email answering the buyer’s question — now it is your representation, and negligent misstatement is a claim that lands on the person who made it. The sharpest version is advice: “yes, the basement is legal,” “taxes are about right for the street.” This is what errors-and-omissions insurance exists for, and why the practical discipline is simple: quote the record as the record (“the listing states…”), verify before you assert, and put verification where it belongs — on the source documents, not the feed summary.

The display duties you do own

Faithful display is a real obligation with real failure modes. Data must stay synchronized with the board record — a price change or a sold status that lingers stale on your site is your display failure even though you authored nothing. Required notices, attribution, and gating must be present: rendering a field your licence keeps behind the VOW layer is a compliance breach regardless of accuracy. And modifying feed values — rounding, “improving,” hand-correcting — forfeits the as-fed defence entirely. The consequences for these failures run through board enforcement, which we mapped in what happens if my website violates MLS display rules.

Practical protection, in order of value

Carry E&O and know what it covers — for a registrant this is table stakes, and often mandatory. Let the pipeline do faithful display: on BrokerFold the feed syncs on a minutes cadence, notices and attribution render structurally on every listing surface, and restricted fields are gated in the platform rather than by per-page discipline, so the as-fed posture is the default state of the site instead of an aspiration. Then police the one thing no platform can: your own claims. Understand what the MLS record is — a member’s warranted submission, not verified ground truth — and write around it accordingly. The agents who get hurt by wrong data are almost never the ones who displayed it; they are the ones who vouched for it.