Most property transactions in Thailand are conducted honestly. But the size of the market, the language gap most foreign buyers face, and the genuine complexity of Thai property law create real openings for both outright fraud and — more commonly — aggressive overselling that quietly misrepresents what a buyer is actually getting.
The patterns below aren't hypothetical. They're drawn from real cases, regulatory actions, and the recurring themes that experienced property lawyers in Thailand see across their client base.
Scam 1: The "90-year lease"
This is the most widespread misrepresentation in the Thai property market, and it's technically not even fraud — it's aggressive marketing that lets buyers draw a conclusion the law doesn't support.
Developers and agents market leasehold villas with a "30+30+30" structure, implying the buyer effectively gets 90 years of ownership. In reality, only the first 30-year registered lease term is a statutory right enforceable in court. The additional renewal periods are contractual promises from the current landowner — and a 2025 Supreme Court ruling specifically confirmed that these renewal clauses are not guaranteed.
If the landlord dies, sells the land, or simply refuses to renew, a court will generally only enforce the first registered term. This makes a massive difference to the property's long-term value and to any financial planning built on the assumption of 90-year tenure. Read our full leasehold vs freehold breakdown for the details.
How to protect yourself: Treat the enforceable term as 30 years when making any financial decision. Price and negotiate accordingly. Ask your lawyer whether layering a usufruct or superficies on top strengthens your position.
Scam 2: The nominee company
"Everyone sets one up" is the line. And for years, nominee company structures — where Thai shareholders exist on paper only, with no real investment or involvement — were so common that many buyers genuinely believed they were legal. They aren't, and they never were.
In 2026, Thai regulators prosecuted 852 companies under nominee provisions, identified billions in economic damages, and deployed AI screening tools to flag suspect structures automatically. The consequences include fines, criminal liability for both the foreign buyer and the Thai nominees, forced dissolution of the company, and forced sale of the property. See our full guide on Thai company structures for the current enforcement landscape.
How to protect yourself: Don't set up a company purely to hold one residential property with nominee shareholders. If someone tells you "it's standard" or "it's never enforced," they're either behind on the enforcement trend or selling you a service. Leasehold-plus-superficies achieves similar practical control without the criminal exposure.
Scam 3: Fake or manipulated title deeds
Less common than the marketing scams above, but real: forged title deeds, altered boundary documents, or genuine deeds for a different — less valuable — plot than the one being marketed. In some cases, a seller presents a Chanote (the strongest title type) for a plot that actually only has a Nor Sor 3 or weaker document, banking on the buyer not checking independently.
How to protect yourself: Never rely on a title deed copy provided by the seller or agent. Pull an independent copy directly from the Land Office. Have your lawyer verify the title type, confirm the seller is the registered owner, check for existing encumbrances (mortgages, other leases, disputes), and commission an independent boundary survey if the land is rural or newly subdivided.
Scam 4: Deposit traps on off-plan purchases
Off-plan condo purchases (buying before construction is complete) often involve staged payment schedules, starting with a reservation deposit. Historically, some developers collected deposits on projects that later stalled, were delayed by years, or were cancelled entirely — with unclear or unenforced refund terms leaving buyers with no property and no money.
Regulatory reform from 2025 introduced standardized contract protections and banned certain unfair clauses, which meaningfully improved the situation. But contract terms still vary, and the specific conditions under which a deposit is refundable deserve careful legal review before you pay.
How to protect yourself: Have your lawyer review the exact deposit and payment terms before signing anything. Confirm what specifically triggers a refund right — developer delay? Failure to complete? Change of specification? And whether that refund right is actually enforceable, not just stated in marketing material.
Scam 5: The developer's "free" lawyer
This one isn't exactly a scam — but it's a structural conflict of interest that consistently produces bad outcomes for buyers. Many developers, particularly in resort areas, offer "free legal review" through a law firm that is, in practice, on the developer's payroll or receiving referral commissions.
A lawyer paid by the developer works for the developer. Their incentive is to close the sale smoothly, not to flag problems that might cause you to walk away. Issues that an independent lawyer would raise — weak renewal clauses, missing encumbrance checks, questionable title status — often go unmentioned in a developer-paid review.
How to protect yourself: Engage and pay for your own independent lawyer. Yes, it costs more than "free." But cheap legal review on a six-figure purchase is a false economy. Ask for references from past foreign clients, confirm Thai Bar Association registration, and make sure they have specific experience with foreign ownership structures.
Scam 6: Pressure tactics
"The foreign quota fills tomorrow." "Another buyer is signing this week." "This price is only good today." Artificial urgency is a standard sales tactic everywhere, but it carries particular danger in a market where many foreign buyers are unfamiliar with the legal landscape and more likely to skip proper due diligence under time pressure.
Any genuinely good opportunity can withstand the days or weeks it takes to get proper legal review. A seller or agent who pushes you to sign or pay before your lawyer has reviewed the documents is giving you useful information about the transaction — just not the kind they intended.
How to protect yourself: Treat any pressure to skip or rush independent legal review as a red flag, not a reason to comply. If the deal is real, it will still be there after your lawyer has done their work.
Scam 7: Material substitution during construction
For foreigners building a custom home, a common dispute pattern involves contractors substituting lower-grade materials than specified — cheaper tiles, thinner structural elements, lower-quality fixtures — without disclosure, pocketing the cost difference. The substitution often only becomes apparent after the builder has been paid and moved on to another project.
How to protect yourself: A detailed construction contract specifying materials by brand, grade, and quantity — not just "tile floors" — combined with an independent supervising engineer who inspects each construction phase before payments are released. This is the highest-value protection available in a build project and one of the most commonly skipped.
The universal defense
Nearly every pattern above is defended against by the same combination: independent legal review before signing anything, independent title verification from the Land Office rather than trusting seller-provided copies, a written contract that specifically states what's being promised, and a genuine willingness to walk away from any deal that resists that scrutiny.
The cost of proper due diligence on a property purchase in Thailand is a fraction of the purchase price. The cost of skipping it can be the entire purchase price. The math is straightforward.
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Our 20-chapter guide covers every scam pattern, a complete due-diligence checklist, red flags to watch for, and the specific questions that protect you at every stage of a Thai property purchase.
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