Surat Thani is the mainland provincial capital and administrative gateway to Koh Samui, Koh Phangan and Koh Tao -- so it's not only mainland residents who need a lawyer here: many buyers and business owners on the islands rely on Surat Thani-based firms or file through Surat Thani's provincial land office and courts. This guide covers what lawyers help with, typical fees in Thai baht, how to tell a lawyer from a visa agent, and how to vet a firm -- and avoid nominee traps -- before you hand over money.
Thai law is conducted in Thai, follows its own procedures, and treats foreigners very differently in areas like land and company ownership -- which matters across Surat Thani province, where ownership on the mainland or the gateway islands of Koh Samui, Koh Phangan and Koh Tao almost always runs through a lease or company structure rather than direct title. Thailand Island Lawyers is one firm maintaining both a Surat Thani and a Koh Samui office specifically to serve clients across the mainland and islands together; some residents and island-property owners also use a Bangkok firm for complex company or litigation work. Because Surat Thani city hosts the provincial land office, court and many government filings, some island business and property matters route through the mainland even when the property itself sits on Samui, Phangan or Tao. Below is what to hire a lawyer for, roughly what it costs in baht, and how to choose a firm you can trust. Fees are typical ranges only; always confirm a written quote and scope with the specific firm.
Surat Thani province spans a mainland provincial capital and its gateway islands -- Koh Samui, Koh Phangan and Koh Tao -- and foreigners cannot own Thai land outright anywhere in it. Property is typically held on a registered long-term lease (commonly 30 years, sometimes with pre-agreed renewals) or through a Thai limited company with genuine, active Thai shareholders. A lawyer runs a title search at the Surat Thani Provincial Land Office (or the relevant island branch office for Samui, Phangan or Tao property), checks access and any coastal or agricultural-zoning restrictions, and structures the lease or company correctly before you commit capital to a mainland home, condo or island villa purchase.
A Thai company that genuinely trades and has active Thai shareholders can legally hold land for a foreign-run business. A company set up purely as a nominee -- Thai names on paper holding land only for a foreigner's benefit -- is illegal under Thai law, and Thai authorities have stepped up scrutiny of nominee shareholding arrangements in tourist provinces including Surat Thani and its islands in recent years. A lawyer gives you an honest read on whether an existing structure (common on an island villa or resort resale) or one you're proposing is defensible, not just paperwork that looks official.
Surat Thani has its own immigration office, at Thung Rang, Kanchanadit District, roughly 15km outside the city centre -- and because Koh Samui, Koh Phangan and Koh Tao are part of the same province, some island residents also handle routine 90-day reporting and extensions through this mainland office or a same-province island branch rather than travelling further afield. A lawyer or visa agent handles routine extensions, but reach for a lawyer specifically for business-linked work permits, extensions for non-tourist categories such as retirement, marriage or business, overstay or blacklist issues, or a refused application.
Surat Thani city is the province's commercial and administrative hub -- home to the provincial land office, court and government offices that Samui, Phangan and Tao property and business owners still need to deal with -- while the islands host most of the foreign-run resorts, dive centres, tour operators and restaurants. A lawyer sets up the Thai limited company, checks the Foreign Business Act licence a resort, dive shop or tour business needs, arranges hotel and homestay registration where applicable, handles work permits for managers and instructors, and drafts commercial leases and staff contracts -- work that is often filed through Surat Thani's mainland offices even when the business itself sits on an island.
Surat Thani's district (amphur) offices handle marriage registration to a Thai partner once you have the required affirmation of freedom to marry from your embassy (usually arranged in Bangkok or by mail), certified translation and legalisation. A lawyer can also draft an enforceable prenuptial agreement, which must be registered together with the marriage. If you hold a land lease, company shares, a vehicle or a Thai bank account anywhere in the province, a bilingual Thai will matters too -- without one, an estate is settled under Thai intestacy law, which can leave a foreign spouse or partner without quick access to sort things out.
Indicative ranges gathered from common property-owner, business-owner and resident matters across the province and its gateway islands. Government charges, certified translation and legalisation are usually extra unless a firm quotes an all-in fixed fee in writing.
| Service | Typical fee (THB) | Notes |
| Initial consultation | Free - 3,000 | Many firms serving Surat Thani and its islands offer a free intro call or meeting |
| Senior lawyer hourly rate | 3,000 - 9,000 / hr | Surat Thani-based and island-branch firms serving the province sit mid-range |
| Land lease or company-structure due diligence | 35,000 - 80,000 | Land-lease and company structuring for a mainland home or island villa purchase |
| Lease drafting or review | 5,000 - 18,000 | Long-term land and commercial leases (resorts, tour operators) cost more |
| Thai company setup for business/property | 30,000 - 60,000 | Plus government fees and registered capital |
| Foreign Business Act licence (resort/dive/tour operator) | 20,000 - 45,000 | Often bundled with company setup for hospitality and tour ventures on Samui, Phangan or Tao |
| Hotel or homestay registration | 10,000 - 30,000 | Depends on property size and whether it qualifies as a homestay or hotel licence |
| Retirement, marriage, DTV or LTR visa assistance | 10,000 - 28,000 | Excludes government fees and certified translation |
| Work permit application | 15,000 - 30,000 | Often bundled with company setup for resort or tour-business roles |
| Marriage registration support | 10,000 - 25,000 | Affirmation, translation, legalisation, amphur filing |
| Prenuptial agreement | 15,000 - 38,000 | Must be registered with the marriage to be valid |
| Thai will drafting | 10,000 - 28,000 | Bilingual will covering Thai-situated assets |
| Litigation / court representation | 50,000+ | Highly dependent on the case; the relevant court sits in Surat Thani city |
A practising lawyer in Thailand is licensed by the Lawyers Council of Thailand. Thailand Island Lawyers is a full-service firm based in Surat Thani with a Koh Samui office, serving Koh Phangan, Koh Tao and South Thailand more broadly, covering corporate/BOI, real estate, family and criminal law with a bilingual team. For complex company, BOI or major litigation work, some residents and island-property owners also engage a Bangkok firm. Confirm genuine English fluency, ask for bar registration, and favour a firm with real experience in land-lease and island-property structures rather than a mainland generalist with no local track record.
Do not rely solely on a lawyer recommended by the seller of a mainland home, island villa or resort/business -- their job is to close the sale. Engage your own lawyer to run the lease or company-structure due diligence and confirm access, title and any hotel/homestay or Foreign Business Act licensing are clean. Given how much Samui, Phangan and Tao property and resort stock has changed hands over the years, this is the single most common point where a modest fee saves a much larger loss.
Routine 90-day reporting and simple visa extensions at the Surat Thani immigration office can often be handled by a visa agent without a lawyer. Reach for a lawyer when a business-linked work permit, a refused application, an overstay or blacklist issue, or a full visa renewal for a non-tourist category is involved -- anything with real legal exposure rather than a straightforward form filed at the immigration counter.
Confirm up front whether meetings happen in person in Surat Thani city, on the relevant island, or by video call, and get a written quote covering government fees, translation, legalisation and any travel costs before you commit. Staged payments tied to milestones protect you far better on a lease, company or property matter than a single up-front sum.
Read independent reviews, confirm the firm is Thai-registered, and be wary of anyone pressuring a fast wire transfer or guaranteeing a land-lease or visa outcome. Thailand has no Western-style notary public -- ask specifically for a Notarial Services Attorney if you need documents certified for use abroad. Keep every instruction and quote in writing and hold onto official receipts.
It's not legally required but strongly advisable. Nearly every foreign property deal in Surat Thani province -- mainland or island -- involves a registered land lease or Thai company structure, since foreigners cannot own Thai land outright. A lawyer checks title and access at the relevant land office and confirms the structure is legitimate rather than a bare nominee arrangement, which is illegal. Legal fees of roughly 35,000-80,000 THB are modest insurance against a structure that later proves unenforceable.
Because Surat Thani city is the provincial capital and administrative hub for the whole province, including Koh Samui, Koh Phangan and Koh Tao -- the provincial land office, provincial court and many government filings that affect island property and businesses run through Surat Thani. Some firms, such as Thailand Island Lawyers, maintain both a Surat Thani and a Koh Samui office specifically to serve clients across the mainland and the islands together.
Yes -- Thailand Island Lawyers is a full-service firm based in Surat Thani with a Koh Samui office, covering corporate and BOI work, civil litigation, real estate and property law, family law and criminal defence, with a bilingual Thai/English team. For complex company, BOI or major litigation matters, some residents and property owners also engage a Bangkok firm.
It depends on the work. Initial consultations are often free or up to about 3,000 THB, senior lawyers charge roughly 3,000-9,000 THB per hour, and fixed-fee jobs range from about 5,000-18,000 THB for a lease review to 35,000-80,000 THB for land or company due diligence. Always get a written quote covering government fees, translation and any travel.
The Surat Thani Immigration Office is at Thung Rang, Kanchanadit District, roughly 15km outside the city centre. Marriage registration is handled at the relevant district (amphur) office rather than immigration. Use a lawyer for business-linked work permits, full visa renewals for non-tourist categories, refused applications, or overstay and blacklist issues.
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.
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Hero photo by Andrea Piacquadio on Pexels. General information only, not legal advice; fees, procedures and visa rules change — confirm current details with a licensed Thai lawyer and official sources.