How MLS Organizations Can Protect Their Agents from Seller Impersonation Fraud

Adopting tools designed to verify sellers' identities is the best way MLS organizations can protect their agents from seller impersonation fraud. But as impersonation methods have grown more sophisticated, so has the technology meant to stop them. That's why choosing the right Ownership Verification tool is so important.

A transaction with a fraudulent impersonator may take weeks before the discrepancy is flagged, and in some cases it isn't noticed until closing. By then, the agent may have already spent hundreds of hours on a transaction that was never going to happen, losing both commissions and reputation along the way.

While most existing methods focus on catching impersonation after it starts, the best way to protect your agents is to stop fraudsters before a listing goes live. That means not only checking the seller's identity against public records, but also watching for AI-generated deepfakes.

Why Does Seller Impersonation Get Past Standard Checks?

ALTA's Critical Issues Study on seller impersonation fraud, a July 2024 survey of 783 title insurance professionals conducted with ndp | analytics, found that 85% of companies rated vacant land as at least "somewhat common" as an SIF target, the highest of any property type. Vacation homes and rental properties followed close behind, each rated as at least somewhat common by 37% of companies, meaning vacant land is far from the only exposure: the pattern extends well past unoccupied parcels and into the kind of investment and rental inventory agents manage every day. According to NAR's 2025 Deed and Title Fraud Survey, 62% of title fraud cases involve vacant land, while the remaining 38% involve other property types. That same ALTA study found that 28% of title companies experienced at least one impersonation attempt in 2023, and 16% of companies with an attempt paid a related claim. ALTA also reported that 54% of real estate professionals had encountered at least one impersonation attempt in the prior six months as of late 2023, with 77% saying attempts were increasing. The FBI's Internet Crime Complaint Center has documented this same pattern directly, warning that criminals use fake identification, spoofed email addresses, and VoIP-generated phone numbers to contact agents and title companies while posing as a property's real owner. Real estate fraud caused an estimated $1.3 billion in losses between 2019 and 2023, according to FBI reporting.

This is also why the fraud is hard to catch with a name-and-registry check alone. By the time a fraudster contacts an agent, they have already matched a real owner's name to the county record and built a scheme designed to survive a quick look. Today, AI tools are a powerful ally for fraudsters, helping them create convincing fake documents. A check that only confirms a name against the ownership record will pass, because the fraudster built the scheme so it would pass. What it cannot confirm is whether the person making contact is the person the record describes. That is a different question, and it is the one a name-and-registry match was never designed to answer.

Two Different Ways MLS Organizations Are Protecting Agents Today

Right now, some MLS organizations have started responding with member advisories: guidance instructing agents to look up the owner of record on county tax and deed websites and request photo identification that matches the public record before proceeding. That kind of advisory is a real step toward MLS fraud protection, but it only goes so far. An agent still has to remember to run the check, and still has to be the one who catches a convincing fake. As impersonation schemes grow more sophisticated, built around AI-generated identities and documents designed specifically to pass a manual look, that limitation becomes the real constraint. The response this problem needs is more automated and less dependent on any single person catching it in the moment.

REsides, Inc., an independent MLS serving the South Carolina Lowcountry, put exactly that into practice. It became the first MLS in the nation to offer Property Shield's Ownership Verification directly to its subscribers, confirming that a seller is the true owner of record before a property is ever listed. The process runs in three layers: a live facial-recognition and liveness scan matched to a government-issued ID (and designed to catch deepfakes), a real-time cross-check against county deed and title records that flags any mismatch between the verified identity and the owner of record, and an actionable report that flags any discrepancy immediately, alerting the agent so they can review it before investing any additional time, money, or effort in the listing. That gives the agent a chance to catch a problem before committing to the listing, instead of after. "By becoming the first MLS in the country to offer Ownership Verification, we are giving our subscribers something no one else has: the confidence that the person on the other side of a listing agreement is the rightful owner of the property," said Colette Stevenson, CEO of REsides.

Associations building verification into shared infrastructure, instead of pushing it down to individual members, is not a new pattern. NAR made Trust Stamp available to REALTORS for free as an identity-authentication tool back in 2017, well before seller impersonation became a named threat category. Seller impersonation is simply the reason to apply that same model now, at the point where it matters: at the point of listing creation, when a transaction that was never going to happen still has time to be stopped before it costs an agent weeks of work and a client's trust.

Where MLS Liability Sits

The clearest reason for MLS executives to act on this is reputational and governance risk. When listing data distributed through the MLS becomes raw material a fraudster used to build a convincing scheme, or when an association is later shown to have known about a growing pattern and done nothing, that record becomes part of how the MLS is judged by its own members and by regulators. That risk exists independent of who technically bears legal liability for a completed fraudulent transaction, which generally lands on the agent, the broker, and the title company involved rather than the MLS itself. No published case law assigns primary liability for a seller-impersonation loss to an MLS or an IDX syndication platform, but reputational exposure does not require a lawsuit to be real.

ALTA's seller-impersonation guidance explicitly tells the industry to "educate real estate professionals in your community, such as county recorders, real estate agents, real estate listing platforms, banks, and lenders" on this threat. That is one of the only places a primary industry source names listing platforms directly in a prevention context, and it reflects where the expectation sits: not as the liable party, but as the intermediary with the most consistent visibility into member activity and the most practical opportunity to intervene before a fraudulent listing ever reaches the market. This mirrors the agent-facing exposure Property Shield has covered separately in title fraud and seller impersonation targeting vacant and investment properties, where the same research pattern puts the agent's time, reputation, and standing with the MLS on the line the moment a fraudulent listing enters the system.

What Should MLS Executives Do Next?

Agents still need to be educated about the threats they face, but today's MLSs require tools that scale for both efficiency and trust. An advisory raises awareness quickly and costs little to issue. A verification requirement, built directly into the listing workflow the way REsides implemented it, moves the check out of any single conversation and into the system every listing already passes through. Property Shield's Ownership Verification is built for exactly that handoff, confirming identity and ownership in minutes, before time, marketing dollars, or an agent's name attach to a listing that was never legitimate. MLS organizations do not need to wait for a fraudulent listing to reach their membership before deciding this is worth solving at the infrastructure level, the same way REsides did.