This article exists because foreign buyers are still being sold villa ownership structures in 2026 that the regulatory environment is positioned to challenge. The previous four articles in this series explained what changed in the law and why. This article focuses on the practical question that prospective buyers face: how to tell whether a structure being presented as legitimate actually is.

The framing matters. The intent of this article is not to enable a reader to make their own legal determination about whether a particular villa structure is compliant. That determination requires a qualified Thai property lawyer reviewing the specific facts of the transaction. The intent is to identify the questions a buyer should be asking, the red flags that should trigger more rigorous scrutiny, and the patterns of presentation that have historically been used to make non-compliant structures appear safe. Every section ends with the position taken by current Thai law and the question that should be put to your lawyer.

If you are working with a lawyer who answers these questions clearly, can produce documentary evidence to support their answers, and is willing to put their professional reputation behind their advice in writing, you are working with the kind of lawyer you should be working with. If you cannot get clear answers to these questions, that is itself the most important red flag in the article.

Red flag 1: “Most foreigners buy this way”

The first and most common framing used to sell nominee company structures is the appeal to common practice. The argument is that 49 percent foreign and 51 percent Thai company structures are how foreigners have bought villas in Thailand for twenty years, that the practice is widespread, that established law firms set them up routinely, and that the regulatory environment treats them as accepted practice.

Each of these claims is partly true and the conclusion drawn from them is not. The structure has been widespread. Established law firms have set them up. The practice has continued for two decades. None of this makes the nominee version of the structure compliant with the Foreign Business Act. The Act has prohibited nominee arrangements since 1999. The Thai Supreme Court has consistently applied substance-over-form analysis to property-holding companies, treating Thai shareholders without genuine economic interest as nominees regardless of formal compliance with the Act’s shareholding thresholds. The widespread use of nominee structures reflects a long period of inconsistent enforcement, not a long period of legality.

The question to ask your lawyer: Is this company structure legal because it relies on genuine Thai shareholders making real capital contributions and the company conducting real commercial activity, or is it legal because nobody has historically been prosecuted for using a nominee arrangement of this kind? If the answer involves any reference to historical practice rather than to current legal substance, the answer is not the answer you need.

Red flag 2: The company exists only to hold the villa

A Thai limited company that exists for the sole purpose of holding a single villa, with no employees, no revenue from commercial activity, no annual income beyond shareholder contributions, and tax returns showing zero or minimal profits over multiple years, is the textbook profile of a structure that the current enforcement framework is positioned to identify.

The Foreign Business Act distinguishes between Thai companies that genuinely operate as commercial entities and those that exist as vehicles to circumvent foreign ownership restrictions. The Department of Business Development’s AI-powered Intelligence Business Analytic System (IBAS) cross-references corporate registry data with tax records, banking data, and land titles to identify companies showing patterns consistent with passive property-holding rather than genuine business activity. A company that owns one villa, files zero-profit tax returns annually, has no employees on the books, and shows no transactional activity beyond its formation is precisely the pattern the system is designed to detect.

A legitimate Thai company that owns a villa is one that conducts real commercial activity beyond the property holding itself, generates legitimate income, files proper tax returns reflecting that income, employs people or pays directors fees, maintains records of board meetings and corporate decisions, and shows the financial substance of a real business in its accounts. This is achievable for some villa ownership arrangements, particularly where rental management, professional services, or related commercial operations can genuinely be conducted through the company.

The question to ask your lawyer: What commercial activity is this company conducting beyond holding the villa, what evidence exists that the activity is genuine rather than nominal, and would the company’s tax filings, banking records, and operational documentation withstand a substance-based review by the Department of Business Development?

Red flag 3: The Thai shareholders cannot be identified or contacted

In a legitimate Thai company, the Thai shareholders are real people with real financial interests in the company. They can be identified by name, they have verifiable independent financial capacity to have funded their share contribution, they participate in shareholder meetings, they have signed financial records, and they can be contacted directly without going through the seller’s lawyer.

In a nominee arrangement, the Thai shareholders are typically unknown to the foreign buyer. They were nominated by the lawyer or seller who set up the company, they hold their shares as a service, they have no independent financial capacity to have funded the share contribution they appear to have made, and the foreign buyer has never met them and could not contact them directly if needed. The Thai shareholders may be the lawyer’s secretary, the lawyer’s family members, or professional nominees who hold shares in dozens of similar companies for a small annual fee.

The Pattaya enforcement actions in March 2026 reportedly identified individual Thai nationals appearing as proxy shareholders in more than a hundred companies, which is the exact pattern this red flag describes. Order Number 5/2568 specifically addresses the use of low-income Thai nationals (State Welfare Card holders) as front shareholders, requiring in-person verification at the Land Office with matching bank statements.

The question to ask your lawyer: Who are the Thai shareholders, how can they be contacted independently of the seller and the seller’s representatives, what documentary evidence exists of their independent financial capacity at the time they acquired their shares, and would their financial records (three months of bank statements before share payment, as Order Number 2/2568 now requires) show genuine contribution from their own resources?

Red flag 4: The structure includes a “shareholder agreement” giving the foreign owner control

A pattern frequently sold to foreign buyers as compliance protection is a private shareholder agreement that gives the foreign minority shareholder effective control over the company despite holding only 49 percent of the shares. The agreement typically includes provisions such as veto rights over major decisions, the right to appoint and dismiss directors, the right to receive all dividends, the right to control the sale of company assets, and other rights that effectively give the foreign shareholder the powers that the 51 percent Thai majority would otherwise have.

The agreement is presented as a legal safeguard for the foreign buyer. It is in fact the opposite. The existence of such an agreement is direct evidence that the structure is a nominee arrangement in substance. The Thai shareholders’ 51 percent on paper is not real majority ownership if their voting rights, dividend rights, and decision-making authority have been contractually transferred to the foreign minority shareholder. The “actual control” test that Thai courts apply (and that proposed amendments to the Foreign Business Act would codify) looks exactly at this kind of arrangement.

Supreme Court Decision Number 5457/2560 addressed a structure of this kind, treating a purported loan agreement that gave the foreign party control over the Thai company as a simulated arrangement designed to evade the Foreign Business Act, and refusing to enforce it. A shareholder agreement that achieves the same effect by different drafting is likely to be treated the same way by a Thai court applying substance-over-form analysis.

The question to ask your lawyer: Does this structure include any agreement (shareholder agreement, side letter, loan arrangement, voting agreement, or other contractual provision) that gives the foreign buyer rights over the company beyond what their 49 percent shareholding would normally provide? If so, on what basis is the arrangement defensible as something other than a nominee structure?

Red flag 5: The lawyer is the seller’s lawyer, or the developer’s lawyer, or the agent’s lawyer

The relationships in the Thai property industry are dense. A foreign buyer arriving in Phuket, Samui, Pattaya, or Hua Hin is typically introduced to a real estate agent, who recommends a lawyer, who works with a developer, who has relationships with notaries and Land Office contacts. The system is designed to close transactions efficiently, which often means the foreign buyer is advised by a lawyer whose primary income stream depends on transactions completing rather than on protecting the buyer’s interests.

This is not an accusation of unethical conduct against any particular lawyer. It is a structural observation about how the system is configured. A lawyer recommended by the seller has divided incentives. A lawyer recommended by the developer has divided incentives. A lawyer who would lose access to introduction networks if they raised inconvenient legal issues has divided incentives. The buyer who relies on this lawyer for advice about whether the proposed structure is sound is asking the question of someone whose business model depends on the answer being yes.

The pattern is well documented in the legal commentary on the Thai property market. Law firms in tourist provinces have historically derived significant income from setting up nominee structures, the property transactions that followed, and the annual accounting fees that kept those companies operational. The 2026 enforcement campaign has explicitly targeted these law firms, with the Pattaya enforcement actions in March 2026 reportedly resulting in business license revocations for several law and accounting firms found to be facilitating nominee structures.

The question to ask: Who pays the lawyer’s fee, who introduced the buyer to the lawyer, what other transactions has the lawyer been involved in for the same seller or developer, and is the lawyer providing the same advice they would provide if their professional indemnity insurer reviewed their files?

The practical response: engage an independent lawyer chosen by the buyer rather than the seller, ideally one with no prior relationship with the developer, agent, or other parties to the transaction. Pay the lawyer directly. Ask for written advice. Ask the lawyer to put their professional reputation behind the structure being presented.

Red flag 6: “The lease is registered, so it is safe”

For lease-based structures rather than company structures, the registration of the lease at the Land Office is correctly described as the critical detail that distinguishes a real right from a personal contract. What is often misrepresented is that lease registration alone makes the whole arrangement secure.

Registration covers the initial 30-year term and binds successors in title under Section 569 of the Civil and Commercial Code. It does not cover pre-agreed renewal clauses, side letters, escrow arrangements, or any other contractual provisions that purport to extend the lease beyond 30 years. The Supreme Court ruling in Case Number 4655/2566 of 18 March 2025 confirmed that pre-agreed renewals beyond the 30-year ceiling are unenforceable regardless of how they are documented, regardless of whether they are paid for in advance, and regardless of whether the parties signed them in good faith.

A 30-year registered lease provides genuine 30-year tenure. A 30+30+30 structure provides genuine 30-year tenure and contractual promises about what might happen after that. The registration of the initial lease does not validate the renewal clauses, even if they appear on the same document or in the same package of paperwork.

The question to ask your lawyer: Show me exactly what is registered at the Land Office for this property, separate from what is in the private contract package. What does the actual entry against the land title contain? Are any renewal clauses, escrow arrangements, or extension agreements registered, or are they only in private contracts?

Red flag 7: The structure relies on a treaty, BOI promotion, or exemption that does not apply

A pattern that occasionally appears in Thai villa marketing is the suggestion that the buyer benefits from a treaty arrangement, a Board of Investment promotion, an Industrial Estate Authority zone, or an Eastern Economic Corridor scheme that allows foreign ownership of land for residential use.

These exemptions exist and they allow foreign ownership in specific circumstances. They do not generally apply to residential villa ownership. The Treaty of Amity allows US-majority-owned companies to operate on near-national terms but does not grant land ownership rights to US individuals for residential property. Board of Investment promotion can in some cases include land for the promoted business but does not apply to passive villa ownership. The Industrial Estate Authority and the Eastern Economic Corridor schemes apply to commercial and industrial use, not residential.

If a structure is being sold as legal because it relies on an exemption framework, the question is whether the exemption actually applies to the proposed use. The framework exemptions are real but narrow, and their misapplication to residential villa ownership is a red flag that the structure is being marketed in a way that overstates the legal protections involved.

The question to ask your lawyer: Does the cited exemption framework actually apply to residential villa ownership in this specific case, what are the qualifying conditions, and what documentation can be produced to demonstrate that the qualifying conditions are met?

Red flag 8: The price is significantly below comparable properties

A villa priced significantly below the market range for comparable properties usually has a reason, and the reason is often related to the legal structure rather than the property itself. Properties held through nominee structures may be priced to reflect the legal risk that an informed buyer would recognise. Properties with title issues, boundary disputes, planning permission problems, or pending enforcement actions against the holding company may be sold at a discount that reflects the underlying issues.

This red flag does not mean every below-market property is problematic. Some properties are priced below market because of legitimate factors including motivated sellers, currency exchange considerations, or specific property characteristics. But a significant price gap warrants explicit investigation of what is being discounted and why.

The question to ask your lawyer: What is the market range for comparable properties in this location, why is this property priced where it is, what factors specific to the legal structure of this property might be reflected in the price, and what additional due diligence is appropriate given the pricing?

Red flag 9: “We can complete the transaction quickly”

A normal villa transaction in Thailand involves due diligence taking two to three weeks for a resale property and four to six weeks for an off-plan property, contract negotiation taking one to two weeks, and Land Department registration taking one day once the contract is settled. The total timeline from offer to completion is typically four to ten weeks depending on the complexity of the transaction.

A transaction structure that promises completion in significantly less time than this should trigger explicit inquiry about what due diligence steps are being compressed or omitted. Title search, company verification, tax compliance review, planning permission verification, environmental restriction checks, and the various specific reviews that protect the buyer all take time. A transaction that proceeds faster than this typically does so by reducing the verification rather than by streamlining the genuine process.

The “limited time offer” framing, where the buyer is told they must commit quickly to secure the property at the offered price, is a recurring pattern in Thai property scams and structurally questionable transactions. A genuine seller of a legitimate property is generally willing to wait for proper due diligence to be completed.

The question to ask your lawyer: What is the timeline for completing the full due diligence on this property, what steps would be compressed or omitted by an accelerated timeline, and what is the lawyer’s view on whether the timeline proposed allows adequate verification of the structure being purchased?

Red flag 10: The seller cannot or will not produce specific documents

A transaction conducted at appropriate due diligence standards involves the seller producing specific documents on request: the Chanote or other land title document; the full company registration documents including the memorandum of association, articles of association, shareholder register, and director appointments; tax filings for the company over multiple years; bank statements showing actual company financial activity; building permits and planning approvals; any leases, superficies, or usufruct registrations against the title; and any related-party agreements affecting the structure.

A seller who is willing to produce these documents on request is dealing with a buyer who is conducting appropriate due diligence. A seller who is reluctant to produce these documents, who produces partial documentation, or who cannot produce certain documents on the basis that they are “with the lawyer” indefinitely, is signalling something about the nature of the transaction.

The question to ask your lawyer: What documents should the seller produce for full due diligence on this transaction, are any documents being withheld or delayed, and what is the lawyer’s view on whether the documentation provided is sufficient to support the structure being proposed?

What “good” looks like

A villa purchase being conducted under appropriate due diligence in 2026 looks like this. The buyer engages an independent Thai property lawyer chosen by the buyer, paid directly by the buyer, with no prior relationship to the seller or developer. The lawyer conducts due diligence over two to six weeks depending on complexity, producing a written report covering title verification, company structure (if applicable), tax compliance, planning and permitting, and any other matters affecting the property. The buyer reviews the report, raises questions, and receives written answers from the lawyer. Any structure being proposed (registered lease, registered superficies, registered usufruct, genuinely operating Thai company) is documented, registered, and supported by evidence that would withstand a substance-based review. The transaction completes through proper Land Department registration with the buyer’s lawyer present.

The cost of conducting a purchase this way is significantly more than the cost of a quick transaction with a lawyer recommended by the seller. The protection it provides is correspondingly greater.

The bottom line

Many Thai villa structures currently being sold to foreign buyers as legitimate would not withstand a substance-based review under current Thai law and the 2025 to 2026 enforcement framework. Some of these structures are deliberate nominee arrangements presented as compliant. Others are technically lawful structures that are nonetheless presented in ways that overstate the legal protection they provide.

The questions in this article are the questions to put to a qualified Thai property lawyer before committing to a transaction. They are not a substitute for the lawyer’s review. Used properly, they are the framework for testing whether the lawyer being relied on is providing the kind of advice the transaction requires.

If the answers to these questions are clear, documented, and supported by evidence the lawyer is willing to put their professional reputation behind, the structure being proposed is likely to be one that can withstand scrutiny. If the answers are vague, evasive, dependent on historical practice rather than current legal substance, or unavailable without payment of further fees to the same lawyer who introduced the issue, the structure being proposed is one that the buyer should consider very carefully before committing capital to.

Important note on legal advice

This article provides general information about due diligence patterns and red flags in Thai villa transactions based on publicly reported sources and the regulatory framework discussed in the preceding articles in this series. It is not legal advice and should not be relied upon as legal advice.

The Tropical Architect and Nay Sirirat are not licensed legal advisers. Thai property law is complex, applies differently to different fact patterns, and the appropriate analysis for any specific transaction requires a qualified Thai property lawyer reviewing the actual facts. The questions in this article are intended to inform the conversation between a buyer and their lawyer, not to substitute for that conversation. Any decision about purchasing property in Thailand should be made on the advice of a qualified Thai property lawyer with current knowledge of the relevant law and enforcement practice, and ideally one independent of the seller, developer, and other parties to the transaction. We strongly recommend that anyone affected by the matters covered in this article seek specific legal advice from a licensed Thai lawyer chosen independently.

For structured guidance on every stage of a villa build in Thailand — from land purchase through to handover — see The Thailand Build Blueprint™ at thetropicalarchitect.com/the-blueprint

For architectural guidance on your specific project, book a strategy session with Nay at thetropicalarchitect.com/consultations