# How to handle a commission dispute over who closed the deal

How procuring-cause disputes over who earned the commission arise, how they're resolved, and how clear payment terms prevent them.

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## How to handle a commission dispute over who closed the deal
Brokers earn their money by closing deals, but closing a deal and getting paid for it are two different events — and the gap between them is where procuring-cause disputes are born. When two brokers both believe they drove the buyer to the table, the commission sitting at closing doesn't automatically split itself in the right direction. The stakes are real: on a $2 million commercial sale at a 3% co-broke, the disputed amount is $60,000, and the outcome rests entirely on who can prove they originated the chain of events that produced the buyer. This article explains exactly how these competing-claim disputes arise, what the law and arbitration panels actually look for, which scenarios produce the hardest fights, and what you can do — before and during a transaction — to put yourself on the right side of that determination.

## What procuring cause actually means

The phrase gets used loosely, but it has a precise legal meaning that panels and courts apply. A broker is regarded as the procuring cause of a sale — and therefore entitled to a commission — if their efforts are the foundation on which negotiations resulting in a sale begin. It is the cause originating a series of events which, without break in their continuity, result in the accomplishment of the prime objective of employing the broker who produces a ready, willing, and able purchaser to buy real estate on the owner's terms.

That phrase — *without break in their continuity* — is the fulcrum of nearly every dispute. It isn't enough to have introduced the buyer to the property first. The question is whether your involvement formed an unbroken causal chain leading to the executed contract. To decide procuring cause, you have to find the point in time when the buyer decides this is the property they want to purchase. At that point, the buyer has been procured. Everything that comes after that decision is simply the buyer doing what has to be done to accomplish what they've already decided to do. The agent who brings the buyer to the decision-to-purchase point is the procuring cause of the sale.

This framing is counterintuitive to a lot of brokers. It means that the agent who spent eight weeks qualifying the buyer, arranged two tours, and drafted the initial LOI can lose to the broker who walked in late and wrote the final offer — if the panel determines the buyer's actual decision to proceed came from the second broker's involvement. The amount of work you did is not the test. The direction of causation is.

The facts of each case are unique and courts have sometimes made inconsistent general rulings about what it means to be the procuring cause. That inconsistency is not random — it reflects the genuinely fact-intensive nature of the question. Two transactions can look nearly identical on the surface and produce opposite outcomes when a panel examines the details.

## How competing claims arise

When disputes occur between competing buyer brokers, it usually means that the buyer-client spent time first with one broker, who may have introduced them to the offered property, but then the buyer began working with a second broker — occasionally without the knowledge of the first buyer broker — who wrote up and submitted the offer that ultimately resulted in a closing of the sale.

Because procuring cause happens when the decision to purchase is first made, competing broker cases mostly split between showing and writing. One agent shows the property and another agent ends up writing the deal. This divide between the broker who opened the door and the broker who drafted the contract is the single most common fault line in these disputes.

Beyond that core pattern, disputes often arise when parties terminate a brokerage relationship, multiple brokers claim the same commission, or a transaction closes under unexpected circumstances. Each of those scenarios has its own mechanics.

### The buyer who changed brokers mid-transaction

This is the classic fact pattern. A buyer works with Broker A, tours the property twice, and seems engaged. Then, weeks later, they reappear with Broker B — who writes the offer and gets to closing. Broker A files for arbitration arguing they originated the relationship with the property. Broker B argues the buyer's genuine decision to buy came through their work.

Procuring cause can get tricky when a buyer shifts brokerages, which can lead to selling commission disputes. The critical question the panel will investigate: did the buyer leave Broker A because Broker A went quiet (abandonment), because Broker A said or did something that drove the buyer away (estrangement), or because the buyer simply found a new relationship they preferred? Each of those answers leads to a different result.

Many arbitrable disputes will turn on the relationship — or lack thereof — between a broker and a prospective purchaser. Panels will consider whether, under the circumstances and in accord with local custom and practice, the broker made reasonable efforts to develop and maintain an ongoing relationship with the purchaser. Panels will want to determine whether the first cooperating broker actively maintained ongoing contact with the purchaser or, alternatively, whether the broker's inactivity, or perceived inactivity, may have caused the purchaser to reasonably conclude that the broker had lost interest or disengaged from the transaction.

The concept of abandonment is lethal to a procuring cause claim. If you introduced the buyer to a $1.5 million industrial building, showed it in March, and then had no documented contact for six weeks while Broker B was actively corresponding with the buyer and structuring a letter of intent — you will have a hard time in arbitration. Your initial introduction may have been the spark, but panels look at whether you maintained the flame.

Alternatively, certain words, actions, or conduct by one selling agent may drive the buyer into the hands of a different selling agent. Assume, for example, that the first agent made an offensive, insensitive, or otherwise inappropriate statement to the buyer. As a result, the buyer refused to continue working with that agent. This is an example of estrangement. Estrangement is treated differently from abandonment — it shifts the analysis toward whether the first broker's own conduct severed the causal chain, rather than their mere inactivity.

### The listing expires and a new broker enters

Terminating listing agreements or buyer-broker relationships is a frequent source of commission litigation. Legally, termination does not automatically extinguish a broker's commission rights. Brokers often claim their pre-termination efforts were the procuring cause of a sale, especially if it closes shortly after termination with a party the broker previously introduced.

This scenario plays out constantly. Listing expires, seller moves to a new broker, and the buyer who originally came in through the first broker's marketing submits an offer two months later. The first broker argues their marketing originated the relationship. The seller — and potentially the second listing broker — argues the first broker is out of the picture.

The tool designed to address this is the protection clause, also called the tail provision or broker protection clause. Most listing agreements have what is known as a "broker protection clause," also known as an "extension clause" or "tail provision." The broker protection clause provides that if the owner contracts to sell the property with a buyer who was procured by the broker within a specified period of time after the expiration of the listing (such as 90 days), then the full commission is owed. This prevents the unjust situation where due to the broker's marketing efforts, a buyer contracts to purchase the property after the listing expires, and the broker receives no compensation.

Tail period clauses in business broker agreements specify the timeframe after contract termination during which brokers are entitled to commissions on deals initiated while the agreement was active. Commonly lasting six to twelve months, these clauses protect broker interests and clarify post-agreement obligations for sellers, helping prevent disputes. In M&A and investment banking engagements, the tail clause protects the advisor's fee if the company completes a transaction with a party the advisor introduced, even if the engagement has ended.

There is an important limit to what the protection clause does. If the seller enters into a new listing agreement with another broker, even if the seller contracts to sell the property to a buyer who was procured by the original broker, the seller will only owe a commission to the new broker and will have an affirmative defense to any claim for a commission brought by the original broker. However, the original broker is not without remedy. As long as the original broker can show that they were the procuring cause of the buyer, then the original broker should have a claim for the co-broke commission offered by the new listing broker.

Protection clauses also come with procedural obligations that many brokers miss. To invoke the tail clause, a broker has to notify the seller as soon as the listing agreement expires. The notice will include the names of each buyer and must be issued within a certain number of days after the property is no longer on the market. Miss that window, and the clause you thought protected you may be unenforceable.

### The case where the deal terms shifted dramatically

A broker will not be considered the procuring cause of a transaction where the court rules that the broker's influence on the transaction was only "slight," the broker was initially involved for a short period of time but another broker actually induced the buyer to enter into the transaction, or where the contract actually signed differs so greatly from the contract the broker originally was authorized to negotiate that the actual contract was beyond the parties' original contemplation.

This last point trips up a lot of brokers in complex commercial deals. You were engaged to sell the building outright. The deal morphed into a sale-leaseback with a different buyer entity, different terms, and a significantly different structure. Even if you introduced the original counterparty, if the transaction that closed bears little resemblance to what you were authorized to negotiate, your claim weakens materially. The panel will ask whether your work is what actually caused this transaction — or whether another broker rebuilt the deal from a fundamentally different starting point.

### The seller who negotiates around you

Particularly challenging is the case where the owner consummates a transaction directly with a buyer or tenant whose status as a broker's prospect was not known to the owner, and the transaction is done at a reduced price — based on the assumption that there is no brokerage commission to pay.

This is one of the most infuriating scenarios a broker faces. You've registered the prospect. You've had substantive conversations. The deal stalls. Then you discover the seller closed directly with your prospect — at a reduced price that explicitly assumed no commission would be paid. Whether you can recover depends heavily on whether you registered the prospect in writing, whether you had a compensation agreement in place, and whether you can prove your work was the causal link to the buyer's interest.

There is an exception to the continuous negotiations requirement when the broker is purposefully excluded from continuous negotiations. In this situation, the broker needs to prove that the parties negotiated directly with each other without the participation of the broker who first made the introduction. This requires documentation of your original engagement and registration of the prospect — precisely the records that protect you and that many brokers fail to maintain systematically.

## How these disputes get resolved

### Association arbitration under Article 17

For REALTORS®, the primary forum is the local association. Article 17 of the NAR Code of Ethics requires that real estate-related contractual disputes between Principal Realtors® associated with different firms must be arbitrated at the Association rather than litigated in a court.

An arbitration request is filed with the Association by the broker-complainant. Upon receipt, the Association refers it to the Grievance Committee. The role of the Grievance Committee is to determine if an arbitration hearing is warranted under the circumstances.

Arbitration requests must be filed within one hundred eighty (180) days after the closing of the transaction, if any, or within one hundred eighty (180) days after the facts constituting the arbitrable matter could have been known by the complainant in the exercise of reasonable diligence, whichever is later. That clock starts running faster than most brokers realize. If you believe you have a claim, document it immediately and consult your broker or an attorney before that deadline approaches.

One aspect of the Association arbitration process that surprises many: it is a money dispute, not an ethics determination. NAR has a clear policy against using the Code of Ethics as a club or lever to settle a business dispute over commission entitlement. As strange as it sounds, it is technically possible to act in an unethical manner and still meet all of the qualifications as the procuring cause of the sale. The hearing panel is deciding who earned the money. Ethics violations, if any, are handled in a separate process.

When multiple claims arise from the same transaction, the listing broker has a mechanism to bring everyone into one proceeding. To avoid the possibility of having to pay two cooperating brokers in the same transaction, the listing broker should join competing claimants in arbitration so that all competing claims can be resolved in a single hearing. This is the cleaner approach — it produces a definitive result rather than leaving competing claims outstanding across separate proceedings.

Arbitration decisions are binding under NAR rules. You do not get to try again in court if the result goes against you. The hearing panel's determination is final.

### What the panel actually evaluates

There is no single rule that determines the outcome. Choosing between competing brokers requires a close examination of the entire course of events, from the time the buyer first learns of the property until they close the transaction. What this examination of events is aimed at is finding the actions that proved essential to the outcome.

Panels work through a structured series of factual questions. The NAR Arbitration Guidelines give panels a list of factors that includes: who first introduced the buyer to the property; whether that introduction was followed by ongoing engagement; whether there was any abandonment or estrangement; whether both brokers were aware of each other's involvement; what each broker's relationship was with the buyer at each stage; and how and when the second broker entered the transaction. The central question is whether the cooperating broker — or second cooperating broker — initiated a separate series of events, unrelated to and not dependent on any other broker's efforts, which led to the successful transaction.

A critical misunderstanding many brokers carry into arbitration: having a signed buyer-broker agreement does not automatically make you the procuring cause. The fact that one broker may have a buyer agency contract with the buyer while the other broker did not should not be the sole deciding factor for determining who was the procuring cause of the sale. Similarly, the fact that the buyer may prefer to subsequently work with a relative who just obtained a real estate license should not be the sole factor. The buyer's preference, while important to the buyer, cannot be the sole determining factor for procuring cause. Instead, an expert hearing panel of experienced real estate professionals renders the decision.

Conversely, the listing broker generally occupies a different position in this analysis. Listing brokers do not have to prove they were a procuring cause of the sale — they have the written listing contract that essentially guarantees them a commission, even if they do nothing more than take the listing and place it in the MLS. The procuring cause fight is overwhelmingly a fight over the buy-side commission.

### Litigation as a fallback

Many commission disputes require mandatory arbitration under MLS or association rules, while others proceed to court depending on the claims. Each forum has distinct procedures, evidentiary rules, and costs.

When court is the avenue — either because arbitration is unavailable, the parties are not both REALTOR® members, or the claims go beyond what a hearing panel can award — the evidentiary standard shifts. In court, it is the broker's burden to prove that they were the procuring cause of the transaction. Typically, brokers will attempt to satisfy the procuring cause standard with evidence like correspondence between the broker and the owner, advertising and marketing materials for the property, and testimony establishing the broker showed the property to the prospective tenant or purchaser and/or negotiated the transaction.

Conversations between the broker and the parties to the transaction are often critical in these cases. A broker may also prove that they were the procuring cause of a transaction with evidence that the broker provided the eventual buyer or tenant with information such as zoning regulations, tax information, and construction details.

California added a wrinkle worth knowing across practice areas. In *Westside Estate Agency, Inc. v. Randall*, the Court focused on the fact that the plaintiff-broker's efforts were too attenuated from the closing date to be considered the procuring cause. In *Schiro*, the Court relied on the buyer's beliefs and state of mind concerning the transaction and their relationship with the plaintiff-broker. The buyer's subjective perception of whether your involvement was still active can affect the outcome even when you believe you were still engaged.

## The documentation imperative

In litigation, contemporaneous written records are often the deciding factor in procuring cause claims. This is not a suggestion — it is the single most reliable predictor of whether you can defend your claim or defeat someone else's.

The file you build during a transaction is your evidence. Every showing, every email exchange, every tour arrangement, every substantive phone conversation that you followed up in writing — these form the chronological record that a panel will use to trace the causal chain. A broker who showed a property once and has no subsequent documentation is in a fundamentally weaker position than a broker who showed the property twice and has three subsequent emails discussing pricing, use, and next steps.

Gather emails, texts, and communication records that show the timeline of who did what. That gathering starts the day you first engage a prospect with a property — not after someone files a competing claim.

For prospect registration, the mechanics matter. When you have an identified buyer for a specific property, register that prospect with the listing broker in writing before the transaction gets too far along. Ask other involved brokerages about possible procuring cause: would they be making a claim for real estate commissions if the sale closes? Confirm this information in writing and maintain it in your records. A registered prospect creates a clear entry point in the record. An unregistered prospect is a gap the other side will exploit.

Disputes between cooperating brokers are also common. Although MLS rules and published commission splits seem to resolve entitlement, disagreements often arise when one broker alleges their counterpart's involvement was minimal or that the transaction deviated from the original plan. When the deal changes structure, document how it changed, what your continuing role was, and whether any new compensation understanding was reached.

## Preventing the fight before it starts

The best-handled procuring cause dispute is the one that never needs a panel to resolve it. Most of the situations that end up in arbitration could have been addressed with a direct conversation between the brokers involved — before closing.

Early legal analysis helps brokers and agents determine whether to seek an early resolution or pursue a more aggressive strategy, especially when claims lack legal or factual support. Not every dispute warrants arbitration. Some claims, examined honestly, don't hold up. While arbitrations are sometimes necessary to protect a duly earned commission, it should not be a primary tool for creating income as a real estate professional.

When a legitimate competing claim exists, a negotiated split is often the practical outcome. Suggest compromise when reasonable — sometimes splitting or adjusting is better than a lengthy dispute. If Broker A did meaningful work introducing the buyer to the opportunity and Broker B did meaningful work structuring the transaction and driving it to closing, a negotiated division of the commission acknowledges reality without requiring either broker to go through months of arbitration proceedings.

For buyer brokers specifically, the mechanism that removes ambiguity before it becomes a problem is a written buyer representation agreement executed before substantive work begins. A buyer-broker agreement solidifies the working relationship between a buyer and an agent or broker. The contract legally confirms the real estate professional's obligations and responsibilities and acts as a record of their procuring cause in the transaction. It doesn't eliminate all risk — as established above, it doesn't automatically win a procuring cause fight — but it creates a documented relationship that has legal weight in the analysis.

## When multiple parties are involved at closing

In a deal with multiple brokers legitimately involved — a listing broker, a cooperating buyer's broker, and potentially a tenant-rep broker on a commercial lease — the commission distribution at closing has to be thought through before the deal gets there. Ambiguity in that distribution is what generates disputes on the back end.

The listing broker's offer of compensation to cooperating brokers, historically communicated through MLS and now handled through separate written agreements, sets the structure. But the structure only holds if it's clear and if all parties understand what triggers payment — and to whom. When Broker A brought the buyer to the table and Broker B assisted in negotiating the final lease terms, who gets the cooperating commission? The answer should be in writing before closing, not decided after the fact.

Contract law will prevail, meaning exclusive listing agreements or buyer/broker agreements will always win. If your agreement defines the trigger for your commission precisely, you don't need a panel to determine it. The problem arises when agreements are silent, or when the transaction diverges from the scenario the agreement contemplated.

This is precisely where the mechanics of payment become as important as the mechanics of the deal. When all parties to a commission — listing broker, cooperating broker, referral participants — are named and their allocations are set before closing, the question of who gets what doesn't have to be answered in a conference room after the fact. Shaka is built for exactly this scenario: the broker who closed the deal sets the recipient wallets and percentages in advance, and when closing occurs, every party receives their share directly and simultaneously, in a single transaction. The distribution executes according to what was agreed — not according to who argues loudest at settlement.

## What the evidence chain must show

If you do end up in a dispute, here is the framework a panel will apply to evaluate your claim. You need to establish: that you made a genuine introduction — not just a casual mention — of the buyer to the specific property; that you maintained ongoing contact after that introduction in a manner consistent with active engagement; that any gap in contact was caused by external factors rather than your own inactivity; that your work materially contributed to the buyer's decision to proceed; and that the transaction that closed is reasonably traceable to the series of events you originated.

Procuring cause is said to occur, outside of an exclusive listing/buyer agreement, when the agent initiates negotiations by doing some affirmative act to bring the buyer and seller together and remains involved in any continuing negotiations between the buyer and the seller, unless they intentionally exclude them.

The broker must prove, by a preponderance of the evidence, that they are the procuring cause of the sale. This is where the dispute typically lies.

Preponderance of evidence means more likely than not — a 51% standard. That's achievable with solid documentation. It becomes very difficult without it. Agents must invest time and resources in gathering records, responding to discovery demands, and participating in arbitration or litigation. That investment starts long before the dispute surfaces. The broker who treats every transaction file as potential evidence from day one is in a fundamentally different position than the broker scrambling to reconstruct a timeline from memory after a competing claim lands.

The commission you earned represents your professional output distilled into one number. Whether you collect it shouldn't depend on whether someone else files first. Understand the doctrine, build the record, define the terms of compensation in writing before closing, and when there's a legitimate competing claim, resolve it through the proper forum without hesitation — because the panel is designed for exactly this, and a documented file will tell your story better than any argument you can make from memory.