Finding a lawyer in Bangkok is easy; finding one who speaks fluent English, understands Western legal concepts, and won’t overcharge you is a different story. The “Thai way” of handling legal disputes often focuses on mediation and compromise, which can be confusing for expats used to aggressive litigation.

This guide categorizes the top law firms based on their strengths—from the massive international powerhouses suitable for corporate mergers to the boutique agencies perfect for your retirement visa or condo purchase.

Why Trust This Guide?

I have personally dealt with the complexities of Thai bureaucracy, from the chaotic queues at Chaeng Watthana Immigration to the intimidating boardrooms of corporate law firms. This list is not a random directory; it is a selection of firms with proven track records of serving the expatriate community. For 2025, we have updated this list to reflect the latest office locations and current contact details.

Bangkok’s Top Law Firms at a Glance

Firm NameBest ForLocation Area
Siam Legal InternationalExpat Generalist (Visas/Property)Khlong Toei (Sukhumvit)
Integrity LegalUS Immigration & Amity TreatySilom
G.A.M. Legal AllianceVisas, Family & MarriageAsoke
Frank Legal & TaxGerman/European StandardsWireless Road
Juslaws & ConsultBusiness Litigation & TaxKhlong Toei
Silk LegalStartups, Crypto & FintechSukhumvit 31
Baker McKenzieMultinational Corporate DealsOne Bangkok (Wireless Road)
Tilleke & GibbinsCorporate & Intellectual PropertyRama 3
Kudun and PartnersModern Commercial LawLangsuan
H&P (Herrera & Partners)High Net Worth & Private ClientAsoke
Lorenz & PartnersOne-Stop Business SetupSathorn
Mahanakorn Partners (MPG)Accounting, Tax & LawWireless Road
Blumenthal Richter & SumetReal Estate & CommercialOne Bangkok

The “Expat Essentials” (Visas, Property, Family)

These firms are the first port of call for individual expats needing help with daily life legalities.

1. Siam Legal International

Widely considered the “go-to” firm for English-speaking expats. They handle everything from visas to property purchases and wills.

  • Phone: 02 254 8900
  • Website:www.siam-legal.com
  • Address: 18th Floor, Unit 1806, Two Pacific Place, 142 Sukhumvit Road, Khlong Toei, Bangkok 10110

Founded by American attorney Ben Hart, experts in US-Thai Treaty of Amity and US immigration visas.

Strong in immigration and family law, handling divorce and custody for mixed couples.

  • Phone: 02 611 2881
  • Website: gam-legalalliance.com
  • Address: Interchange 21 Building, Asoke, Bangkok

Boutique & Specialized Firms

Smaller firms offering targeted expertise.

4. Frank Legal & Tax

German standards for property and corporate setups, multilingual team.

  • Phone: 02 117 9131
  • Website: franklegaltax.com
  • Address: Sindhorn Building Tower 2, 10th Floor, Wireless Road, Bangkok 10330

Modern firm specializing in Fintech, Blockchain, and startups.

  • Phone: 02 107 2007
  • Website: silklegal.com
  • Address: RSU Tower, Sukhumvit 31, Bangkok

6. Juslaws & Consult

Independent firm strong in litigation and business disputes.

  • Phone: 02 254 4118
  • Website:www.juslaws.com
  • Address: Sukhumvit Road, Khlong Toei, Bangkok

7. Lorenz & Partners

European-focused, one-stop for business setup including tax and accounting.

8. Mahanakorn Partners Group (MPG)

Multidisciplinary with strong tax and accounting integration.

  • Phone: 02 651 5107
  • Website: mahanakornpartners.com
  • Address: Wireless Road, Bangkok

9. H&P (Herrera & Partners)

For Spanish-speaking and high-net-worth clients.

The Corporate Heavyweights

For large-scale business needs.

10. Baker McKenzie

10. Baker McKenzie

Global giant, moved to One Bangkok in late 2024.

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11. Tilleke & Gibbins

Oldest firm in Thailand, leaders in IP.

  • Phone: 02 056 5555
  • Website:www.tilleke.com
  • Address: Supalai Grand Tower, Rama 3, Bangkok

12. Kudun and Partners

Rising firm for commercial and capital markets.

  • Phone: 02 838 1750
  • Website:www.kap.co.th
  • Address: Langsuan, Bangkok

13. Blumenthal Richter & Sumet (BRS)

Independent firm strong in real estate and FDI.

  • Phone: 02 022 1000
  • Website:www.brslawyers.com
  • Address: One Bangkok, Wireless Road, Bangkok

Frequently Asked Questions

Can foreigners own 100% of a business in Thailand?

Generally, no. Under the Foreign Business Act, foreigners are limited to 49% ownership in most sectors. However, there are three main exceptions: 1) Obtaining a Board of Investment (BOI) promotion, 2) Being an American citizen under the US-Thai Treaty of Amity, or 3) Obtaining a Foreign Business License (which is difficult).

How much does a lawyer cost in Bangkok?

Fees vary wildly. A simple consultation might cost 2,000–5,000 THB per hour at a boutique firm, while top-tier international firms charge 10,000–20,000 THB per hour. Fixed fees are common for standard services: a work permit application might cost 15,000–25,000 THB, and a company setup 30,000–50,000 THB.

Do I need a lawyer to buy a condo?

While not legally required, it is highly recommended. A lawyer will conduct “Due Diligence” to check if the title deed is clear of debt, if the seller is the true owner, and if the foreign quota ratio in the building is still open. This typically costs 20,000–40,000 THB.

What is a 'Notary Public' in Thailand?

Thailand does not have “Notaries” in the Western sense. Instead, they have “Notarial Services Attorneys.” These are Thai lawyers who have passed a special exam to verify signatures. If you need a document notarized for use abroad, make sure the lawyer has this specific license.

Can a foreigner be a director of a Thai company?

Yes. A foreigner can be a director and have sole signing authority for a Thai company. However, the company must still employ a ratio of 4 Thai staff for every 1 foreign work permit holder.

References

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