Broker Liability for Fake Leases in South Korea
Is He Liable for the Lender’s Loss?
Table of Contents
- 1. What was decided in 2025Da220652?
- 2. Why is signing a contract you did not broker unlawful?
- 3. Can liability arise without knowledge of the fraud?
- 4. Is there proximate causation between the contract and the lender’s loss?
- 5. Does being deceived excuse the broker?
- 6. When is the broker not liable?
- 7. What does this mean for foreign companies and investors in South Korea?
- Frequently Asked Questions
Someone you vaguely know walks into your brokerage office and says he represents both the landlord and the tenant. He asks for one favor: just draw up the lease agreement. No commission, no viewing, no parties present. Months later, a complaint from a lending company arrives.
In South Korea, a jeonse lease agreement (jeonse is a Korean lease structure in which the tenant pays a large refundable deposit instead of monthly rent) is the document that unlocks deposit-backed bank financing. That makes it the essential instrument in organized loan fraud, and a broker’s signature is what makes a lender believe it. On May 29, 2026, the Supreme Court of Korea reversed a lower court and held that a broker who never brokered anything may still answer for the lender’s loss. The reasoning matters to brokers, lenders, and to any foreign company or investor relying on Korean real estate documentation.
What was decided in 2025Da220652?
A fraud ring recruited sham tenants, forged jeonse lease agreements, and obtained deposit-backed loans from financial institutions. The lending company, as the victim, sued the licensed broker who had prepared the lease agreement. On May 29, 2026, the Supreme Court of Korea reversed the appellate judgment and remanded the case to the Ulsan District Court.
The perpetrators were convicted of fraud and related offenses, and those convictions became final. The plaintiff lender argued that the defendant broker, trusting only the word of a person posing as agent for both sides, prepared a jeonse lease agreement without performing any brokerage, and that the lender consequently suffered a loss equal to the loan amount.
The appellate court, the Ulsan District Court (November 19, 2025, 2025Na10744), dismissed the appeal, finding insufficient evidence of the broker’s negligence and of proximate causation between that negligence and the alleged loss. The Supreme Court of Korea declined to accept that conclusion.
Why is signing a contract you did not broker unlawful?
Because the Licensed Real Estate Agents Act ties the preparation of a transaction contract to the completion of brokerage. A licensed broker must prepare and deliver a transaction contract only when brokerage has been completed, and must not casually prepare and deliver one where no brokerage occurred.
Three provisions supply the basis. Article 25(3) requires the broker, when brokerage has been completed and a transaction contract is being prepared, to record the confirmation and explanation items in writing, deliver that document to the parties, and retain the original, a copy, or an electronic document for a prescribed period. Article 25(4) requires the broker to sign and seal that confirmation and explanation statement. Article 26(1) requires the broker, when brokerage of the property has been completed, to prepare a transaction contract, deliver it to the parties, and retain it; Article 26(2) applies the signature and seal requirement; and Article 26(3) prohibits false entries of the transaction amount or other terms and the preparation of two or more inconsistent contracts.
Reading these together, the Supreme Court of Korea held that a broker must prepare and deliver a transaction contract only when brokerage has been completed (Supreme Court of Korea, May 29, 2026, 2025Da220652). The same principle was established in 2010 (Supreme Court of Korea, May 13, 2010, 2009Da78863, 78870).
The act itself is the violation
The 2026 decision went one step further. Where a broker prepares a contract for a real estate transaction that was not concluded through the broker’s own brokerage and delivers it to a person who is not an actual party, the Court held that this may be regarded, absent special circumstances, as a violation of Article 25(3), Article 25(4) and Article 26 in and of itself. The inquiry does not begin with whether the contract’s contents were true.
Can liability arise without knowledge of the fraud?
Yes. Article 760(3) of the Korean Civil Act treats an aider as a joint tortfeasor, and under Korean law aiding can be committed negligently. Neither conspiracy nor shared awareness is required.
The settled formulation is this. For joint tort liability under Article 760 of the Korean Civil Act, no conspiracy or common awareness among the actors is required; it suffices that their acts are objectively connected, and the joint tort is established when damage results from those connected acts. Aiding under paragraph (3) covers all direct and indirect acts that facilitate a tort, and because civil law aims at compensation and in principle equates negligence with intent, aiding by negligence is possible. The negligence at issue consists of breaching a duty not to assist a tort (Supreme Court of Korea, January 10, 2003, 2002Da35850; Supreme Court of Korea, February 28, 2019, 2018Da283629).
In other words, criminal aiding requires intent, but civil aiding requires only breach of a duty not to help. Applying that standard, the Supreme Court of Korea treated the broker’s act of preparing and handing over the lease agreement without any brokerage as a breach of the statutory duty of care, and as conduct that can be evaluated as facilitating the fraud ring’s loan fraud.
The specific facts the Court relied on
The Court identified concrete circumstances. The broker had performed no brokerage of the lease at all; on his own account, he prepared the agreement because a person he was slightly acquainted with said he was acting as agent for both sides. The broker never met the landlord or the tenant. The seal presented for the landlord was not a registered seal, and there was no indication that objective evidence of a grant of agency authority had been provided. The landlord and tenant fields of the contract showed no agent at all, but were signed and sealed as though the parties themselves had executed the document.
Is there proximate causation between the contract and the lender’s loss?
It can be established, and foreseeability is the key. A broker can readily foresee that a jeonse lease agreement will be used as the primary supporting document when the deposit-return claim is pledged as security in a money-lending transaction.
Where a broker prepares a contract for a transaction not concluded through the broker’s own brokerage and delivers it to a person who is not an actual party, the Supreme Court of Korea held that the broker can well anticipate, absent special circumstances, that a third party may believe the rights and obligations recorded in the contract to be genuine and enter into a transaction on that basis. The 2010 decision put the point concretely: because such a contract shows that the tenant holds a claim against the landlord for return of the deposit, a real estate broker readily foresees that it may be presented and delivered as the primary document supporting the existence and content of that claim when it is pledged as security in a money-lending transaction (Supreme Court of Korea, May 13, 2010, 2009Da78863, 78870).
The 2026 decision followed the same logic and concluded that the loss suffered by the lender, which believed the rights and obligations recorded in the broker’s lease agreement to be genuine and extended a deposit-backed loan to a sham tenant, can be evaluated as resulting from the broker’s breach of the duty of care.
Proximate causation remains a separate question
Establishing aiding does not automatically establish liability. To hold an aider liable as a joint tortfeasor, there must be proximate causation between the aiding and the victim’s loss, and that question is judged by considering the effect of the negligent aiding on the occurrence of the harm, the extent to which it contributed to the victim’s trust, and whether the victim could easily have prevented the harm (Supreme Court of Korea, March 27, 2014, 2013Da91597). Courts also weigh the purpose and protected interests of the statute imposing the duty, the manner of the wrongful act, the nature of the interest infringed, and the extent of the harm (Supreme Court of Korea, February 28, 2019, 2018Da283629).
Does being deceived excuse the broker?
Not by itself. The Supreme Court of Korea accepted that the broker too appears to have been deceived, yet held that this alone does not establish an absence of negligence; it may serve only as a ground for limiting the scope of liability.
The Court noted that the perpetrator had supplied the landlord’s genuine personal information to the broker and that the deposit was paid into the landlord’s account named in the lease agreement. Those facts suggest the broker was himself taken in by an organized and premeditated scheme. Even so, the Court stated that such circumstances alone make it difficult to conclude that the broker was free of negligence, and that they may at most be treated as a ground for limiting the broker’s liability in damages.
The practical consequence is significant. “I was deceived too” is no longer a shield against liability; it is an argument about the percentage. The battleground shifts from whether liability exists to how far it extends.
On that basis, the Supreme Court of Korea held that the appellate court, in finding insufficient evidence of negligence and proximate causation, had misapprehended the law on a broker’s duty of care and on joint tort liability through negligent aiding, and had exceeded the limits of free evaluation of evidence contrary to the rules of logic and experience without conducting the necessary examination. The case was remanded.
When is the broker not liable?
Where the broker performed the ordinary steps of the profession and the transaction did not deviate from a normal lease, liability may be denied. And even where negligent aiding is found, liability does not arise if proximate causation is absent.
The Supreme Court of Korea has done exactly that. Where brokers arranged a sale of a land share without even checking the property register and so failed to disclose a pending auction, the Court found negligent aiding of the seller’s tort yet held that liability for that aiding could not be imposed (Supreme Court of Korea, March 27, 2014, 2013Da91597). A breach of duty is not the same thing as liability in damages.
Lower courts have reached the same result on their facts. Where the named parties came to the brokerage office in person, identity was confirmed by collecting and comparing their identification cards, the landlord, tenant and broker each signed and sealed the agreement in their own hand, and the broker inspected the property register on both the contract date and the balance payment date to confirm that the registered owner matched the landlord and that no encumbrances stood in the way, the court found that the broker had taken the steps reasonably expected of the profession and rejected the negligent aiding claim (Incheon District Court, July 13, 2016, 2015Gadan234731).
The dividing line is clear. In the cases where liability was denied, the broker met the parties, verified identity, and examined the register. In the 2026 case there was no brokerage at all, no meeting with the parties, and no verification of agency authority.
What does this mean for foreign companies and investors in South Korea?
Foreign-invested companies, expatriate employees and lenders operating in South Korea routinely rely on Korean lease documentation for housing allowances, corporate leases, employee relocation, and deposit-backed financing. This decision confirms that a broker’s signature carries legal weight, and it also confirms that the party relying on the document is expected to verify it.
The point is practical in the Incheon Free Economic Zone (IFEZ), where Atlas Legal is based. Companies in the Songdo International Business District, Cheongna International City and Yeongjong International City frequently execute residential and office leases through local brokers, often with limited Korean-language capacity and through an agent. Three habits reduce exposure.
- Insist that the confirmation and explanation statement required by Article 25(3) of the Licensed Real Estate Agents Act be issued together with the contract. Its absence is a signal that no genuine brokerage occurred.
- Confirm the landlord’s identity and the lease terms directly with the landlord, and keep a record of when and how the confirmation was made. Under the proximate causation test, whether the relying party could easily have prevented the harm is expressly weighed.
- Check that the account receiving the deposit belongs to the registered owner shown in the property register.
For licensed brokers
The safest protection remains the simplest rule: never prepare a contract for a transaction you did not broker. No favor, no explanation that the paper is “just for a loan,” and no absence of commission creates an exception. Where an agent is involved, obtain objective proof of the agency authority, keep a copy, and record the agent’s role in the contract itself. A contract made to look as though the principals signed it personally is, on its face, evidence of a violation.
Atlas Legal has handled a range of disputes arising from real estate documentation and lender loss recovery in South Korea, and in our experience the outcome usually turns on one question: what did the broker verify at the moment of signing, and is there a record of it?
Frequently Asked Questions
Q. Is it unlawful in South Korea for a broker to prepare a contract without having brokered the deal?
A. Yes. Article 26(1) of the Licensed Real Estate Agents Act requires a licensed broker to prepare and deliver a transaction contract when brokerage has been completed. Reading that provision together with Article 25(3) and (4), the Supreme Court of Korea held that a broker must prepare and deliver a transaction contract only when brokerage has been completed, and must not casually prepare and deliver one where no brokerage took place (Supreme Court of Korea, May 29, 2026, 2025Da220652; Supreme Court of Korea, May 13, 2010, 2009Da78863, 78870).
Q. Can a broker be liable even without intent to help the fraud?
A. Yes. Article 760(3) of the Korean Civil Act treats an aider as a joint tortfeasor, and Korean courts hold that aiding may be committed negligently. No conspiracy or shared awareness among the wrongdoers is required; it is enough that the acts are objectively connected. Negligent aiding means breaching a duty not to assist a tort (Supreme Court of Korea, January 10, 2003, 2002Da35850; Supreme Court of Korea, February 28, 2019, 2018Da283629).
Q. Can a lender that financed a deposit-backed loan sue the broker?
A. Yes. A jeonse lease agreement (jeonse is a Korean lease structure in which the tenant pays a large refundable deposit instead of monthly rent) evidences the tenant’s claim for return of the deposit. The Supreme Court of Korea held that a broker can readily foresee that such a contract will be presented as the primary supporting document when that claim is pledged as security in a money-lending transaction, so the lender’s loss may be attributed to the broker’s breach of duty (Supreme Court of Korea, May 13, 2010, 2009Da78863, 78870; Supreme Court of Korea, May 29, 2026, 2025Da220652).
Q. What should a broker verify when someone claims to act as an agent for both parties?
A. Objective proof of the agency authority. In the 2026 case the Supreme Court of Korea pointed to the broker never meeting the landlord or the tenant, the seal presented for the landlord not being a registered seal, no objective evidence of a grant of agency authority, and the contract being signed and sealed as though the parties themselves had executed it, with no indication of an agent (Supreme Court of Korea, May 29, 2026, 2025Da220652).
Q. Are there South Korean cases where the broker was not held liable?
A. Yes. The Supreme Court of Korea has found negligent aiding but denied liability because proximate causation was absent (Supreme Court of Korea, March 27, 2014, 2013Da91597). A lower court likewise rejected liability where the contracting parties visited the brokerage office in person, identity was confirmed against their identification cards, and the broker checked the property register for ownership and encumbrances (Incheon District Court, July 13, 2016, 2015Gadan234731).
Q. How is the amount of damages determined in the 2026 case?
A. It is not yet fixed. The Supreme Court of Korea reversed the appellate judgment and remanded the case to the Ulsan District Court, so damages will be determined on remand. Because the Court stated that the broker having been deceived may serve as a ground for limiting the scope of liability, comparative fault and the limitation ratio are expected to be central issues on remand.
Broker liability disputes in South Korea turn on how the breach of duty, proximate causation and the limitation of liability are framed. If you are facing a dispute over a real estate broker’s liability or a deposit-backed loan loss, please contact Atlas Legal at +82-32-864-8300.
