Thundthornthep Yamoutai

Thundthornthep Yamoutai
Thundthornthep Yamoutai, Ph.D.
Thundthornthep Yamoutai, Ph.D. Business Lawyer & AI LegalTech Strategist Designing Legal Frameworks to Protect, Structure & Scale Businesses — Sustainably
Based in	Bangkok, Thailand
Nationality	Thai
Position	Founder & Managing Director, Legal Advance Solution Co., Ltd. (LAS)
Public service	Legal Advisor to the First Vice-Chairman of the Bangkok Metropolitan Council Since 16 July 2026
Legal technology	Kelomn.com AI Legal Research Legal knowledge development and writing
Expertise	Expert in business legal planning, designing contracts and business agreements through a structured thinking process tailored for entrepreneurs
Education	DPA/Ph.D. — Bangkokthonburi Univ. LL.M. (Business Law) — Assumption Univ. LL.B. — Assumption Univ.
Credentials	Notarial Services Attorney WIPO IP Certificate Thammasat Int'l Trade Law Cert.
Known for	AI-Powered Legal Research System (NIA-funded) MahaNakhon Project (Ritz-Carlton) Government and public-sector advisory experience University lecturer at 3 universities Published researcher in ASEAN Citation Index Former Extraordinary Parliament Committee member Due Diligence & CP specialist SME D Coach (SME Development Bank)
Website	laslegal.co.th
Links	Articles and Publications LASLegal.tech Knowledge Kelomn Knowledge Hub SME D Coach — SME Development Bank Research Paper (SMEs in Bangkok) IEAT News Thai Used Car Dealers Association

Thundthornthep Yamoutai, Ph.D. is a Thai business lawyer, legal scholar, and AI Legal Tech pioneer specialising in business legal planning, contract design, and structuring business agreements through a strategic thinking process tailored for entrepreneurs. He is the Founder and Managing Director of Legal Advance Solution Co., Ltd. (LAS), a Bangkok-based law firm that combines traditional legal practice with the development of an AI-driven legal research advisory system — a project awarded R&D funding by the National Innovation Agency (NIA).

With over 20 years of combined experience across private-sector practice, in-house counsel, academic lecturing, and government advisory roles, he has handled complex legal matters for leading real estate developers, multinational hotel operators, and publicly listed companies. His advisory approach is rooted in identifying legal risks in advance, designing preventive strategies, and ensuring compliance that supports sustainable business growth.

His current work brings together legal practice, public service, legal education, and legal technology. He serves as Legal Advisor to the First Vice-Chairman of the Bangkok Metropolitan Council, develops the Kelomn.com AI Legal Research platform, and writes legal knowledge resources for LAS, LASLegal.tech, and Kelomn.com.

Profile updated: 5 September 2026

Early Life and Education

Thundthornthep Yamoutai is based in Bangkok, Thailand. He completed his secondary education at Assumption College Thonburi, majoring in Mathematics–English.

He holds a Doctor of Public Administration (DPA/Ph.D.) from Bangkokthonburi University, a Master of Laws (LL.M.) in Business Law, and a Bachelor of Laws (LL.B.) from Assumption University in Bangkok.

In addition to his degrees, he has completed several professional certification programmes: a general course on intellectual property from the WIPO Worldwide Academy (United Nations), a certificate in international trade laws from the Faculty of Law at Thammasat University, and certification as a Notarial Services Attorney from the Lawyers Council of Thailand.

Legal Career

Early Law Firm Practice

Thundthornthep began his legal career in Thai law firms, working as a junior and later senior lawyer handling corporate law, foreign business licences, and complex company establishment. His work included drafting and negotiating various commercial agreements, providing legal opinions, and advising on investment models and corporate governance for both Thai and foreign clients.

Real Estate and Hospitality

He later moved into in-house roles in the real estate and hospitality sector, taking senior legal positions at:

• Laguna Resorts & Hotels Plc. in Phuket as Senior Lawyer, responsible for luxury residential projects (e.g., Banyan Tree Residences) and resort/hotel operations under condominium structures.
• Pace Development Co., Ltd. and subsequently Pace Development Corporation Public Co., Ltd., where he handled complex legal matters related to the MahaNakhon luxury mixed-use project in Bangkok, including branded residences (The Ritz-Carlton Residences), a luxury hotel, retail centre, and plaza.

At Pace, he worked closely with financial advisors and auditors to prepare the company for listing, supported board and executive committee meetings, and developed legal compliance frameworks.

Leadership Roles in Property Companies

He served as Director of the Legal Department at Tri Property Co., Ltd. In this role he:

• Designed the legal and compliance framework to support the group's plan to become a listed company.
• Managed legal documentation for seven condominium projects in Bangkok and Phuket and a beachfront hotel in Patong.
• Oversaw all property registrations at the Land Department and ensured legal processes followed project timelines.

He later became a Partner (Corporate and Real Estate) at Law Republic Co., Ltd., advising on corporate and property transactions.

Legal Advance Solution (LAS)

Thundthornthep founded Legal Advance Solution Co., Ltd. and became its Managing Director. The firm's name abbreviates to "LAS" — a homophone of "last," signifying their commitment to being the final, trusted answer in legal advisory.

At LAS, the team focuses on real estate development, corporate and commercial law, personal data protection, SME transformation, government regulatory policy, and — distinctively — the development of an AI-powered legal research platform for Thai law.

The firm's concept centres on legal advice grounded in fact and legitimate reference, combined with business perspective and an entrepreneurial mindset. LAS serves as a dedicated legal partner throughout the entire project lifecycle — from feasibility study to completion and beyond.

Signature Methodology: Due Diligence & Conditions Precedent (CP)

A defining hallmark of Thundthornthep's legal practice — and the LAS advisory approach — is the systematic design of Due Diligence and Conditions Precedent (CP) mechanisms that serve as powerful screening and compliance frameworks in complex business transactions.

This methodology reflects Thundthornthep's deep expertise in designing legal frameworks that protect, structure, and scale businesses sustainably. The LAS Due Diligence & CP approach includes:

• Precision Screening of Counterparties & Investment Targets — Designing multi-layered due diligence checklists that systematically evaluate legal, financial, and operational risks before any binding commitment, ensuring that only qualified and verified parties proceed to transaction.
• Complex but Practicable Condition Systems — Crafting intricate CP structures that are sophisticated enough to protect the client's interests, yet realistic and achievable for counterparties to fulfil within agreed timelines. This balance between complexity and practicability is a key differentiator of LAS advisory.
• Monitoring & Enforcement Mechanisms — Building ongoing compliance tracking systems within contractual frameworks, ensuring that counterparties must continuously meet specified conditions, with clear escalation paths and remedies for non-compliance.
• Business-Aligned Risk Mitigation — Integrating CP and due diligence requirements seamlessly into the business transaction structure, so that legal protections enhance rather than impede commercial objectives.

This signature approach has been refined across 20+ years of practice in landmark projects — from the MahaNakhon development and Ritz-Carlton branded residences to government policy advisory and NIA-funded AI legal technology — and is now further enhanced through the LAS AI-Powered Legal Research Advisory System funded by NIA.

Advisory Philosophy and Practice Areas

Thundthornthep's advisory approach is rooted in real-world experience across corporate law at international firms, leading in-house legal departments for publicly listed companies, and advising government ministries. For every engagement, his primary objectives are to:

• Identify legal limitations, conditions, and regulatory constraints relevant to the client's business operations;
• Assess and communicate risks to executive management in advance, enabling informed decision-making;
• Design preventive strategies and systematic risk mitigation plans to safeguard the client's interests; and
• Ensure legal compliance across all operational areas, supporting sustainable and long-term business growth.

LAS offers advisory services across the following practice areas:

Government and Public Service

Thundthornthep has an extensive record of service as a legal advisor and committee member to Thai government ministries, state enterprises, and public organisations. Current positions appear first, followed by completed appointments. His terms on both the IEAT Subcommittee on Law and Privileges and the Working Group on Legal Implementation have concluded.

He was appointed Legal Advisor to the First Vice-Chairman of the Bangkok Metropolitan Council with effect from 16 July 2026, under Bangkok Metropolitan Council Order No. 38/2569. Appointment announcement

Academic and Teaching Activities

Thundthornthep is active in legal education as a lecturer and speaker across multiple universities in Thailand:

University Appointments

Teaching Subjects and Course Topics

His teaching is distinguished by extensive use of real-world documents and case studies drawn from his own practice — including contracts from the MahaNakhon project, joint venture agreements, condominium sale-purchase agreements, employment contracts, powers of attorney, and corporate meeting documents — giving students direct exposure to the standards and complexity of professional legal practice.

AI-Powered Legal Research

Background and NIA Funding

Thundthornthep leads legal research and development work on Kelomn.com, alongside his practice at LAS. The project builds on the LAS AI-Powered Legal Research initiative and receives research funding from the National Innovation Agency (NIA). LAS's July 2026 project announcement describes Kelomn as an ongoing research initiative for improving access to Thai business law. Project announcement

On 10 August 2026, he and the LAS team presented Kelomn's development progress to NIA representatives during a visit to the LAS office. The published report identifies judgment search, Royal Gazette monitoring, and tax ruling research among the platform's operational features. NIA progress review

System Capabilities

Kelomn brings legal research tools and explanatory articles together in a shared knowledge hub. Its public resources include:

• Judgment research — Search and reading tools for Thai Supreme Court decisions.
• Legislative monitoring — Royal Gazette updates that help readers follow newly published legal materials.
• Tax and regulatory research — Resources for tax rulings, Council of State opinions, and PDPA consultations.
• Business law education — Explanatory articles and visual guides connecting legal concepts with practical business situations.

Explore Kelomn AI Legal Research · Browse the knowledge hub

Impact and Vision

His work connects professional legal judgment with software development, source-based research, and public legal education. Kelomn's business law framework follows four themes: Share, Shield, Control, and Up, linking business foundations, protection, organisational control, and growth.

Kelomn remains an ongoing research project. Its tools and explanatory content support research and learning; they do not replace original legal sources or advice from a qualified legal professional. Project scope and research notice

Thundthornthep Yamoutai, Ph.D., LAS, Legal Advance Solution Co., Ltd.
Awarded AI Legal Research R&D funding by
National Innovation Agency (NIA), Thailand

Selected Major Projects

Real Estate and Hospitality

• MahaNakhon Luxury Mixed-Use Project, Bangkok — Handled complex legal matters for the MahaNakhon development, including The Ritz-Carlton Residences, a luxury boutique hotel, high-end retail centre, and public plaza, and supported the company's legal preparation for stock-exchange listing.
• Banyan Tree Residences & Luxury Residential Projects — Managed legal work for multiple luxury residential developments, including Banyan Tree Residences Bangkok and Banyan Tree Residences Phuket, covering project structuring, sales documentation, and regulatory compliance.
• Laguna Resorts & Hotels Portfolio, Phuket — Responsible for legal matters of several luxury resorts and hotels such as Banyan Tree Phuket, Outrigger Laguna Phuket, and Best Western Allamanda Laguna Phuket, including hotel licensing and operations under condominium structures.
• Condominium and Hotel Projects for Tri Property Group — Oversaw legal affairs for seven condominium projects in Bangkok and Phuket and a beachfront hotel in Patong, covering land acquisition, condominium registration, and property transfers at the Land Department.

Corporate and Capital Market Preparation

• Listing Preparation for Pace Development Corporation Public Co., Ltd. — Collaborated with financial advisors and auditors to design legal compliance systems, resolve legal risks, and prepare corporate documentation and board/committee processes for listing on the Thai stock exchange.
• Listing Preparation Framework for Tri Property Group — Developed the legal and compliance framework and documentation structure to support the group's readiness for future listing as a public company.

Government Policy and Law Reform

• Committee on Law Reform and Drafting Energy Laws — Served on the Ministry of Energy's committee responsible for drafting and reforming energy-related legislation, contributing legal and policy input on national energy frameworks.
• Committee to Drive EV Industry Promotion Policy — Participated in the Ministry of Industry's committee to promote Thailand's electric vehicle (EV) industry, helping shape legal and regulatory mechanisms for EV ecosystem development.
• Extraordinary Parliament Committee on Research and Innovation Law — Contributed as committee member for the Draft Research and Innovation Utilisation Promotion Act, aligning legal provisions with Thailand's research and innovation policy goals.
• Extraordinary Parliament Committee on Higher Education Act — Advised on higher education legislation to support governance, coordination, and problem-solving in Thai higher education institutions.
• The Drafting of National Education Act — Served as legal expert for members of parliament in drafting the National Education Act.
• Legal Advisor to the Director-General of the Rice Department — Appointed in November 2025 as Legal Advisor to the Director-General of the Rice Department, Ministry of Agriculture and Cooperatives, supporting legal work on agricultural policy, trade regulations, and institutional governance for Thailand's rice industry.

SME and mSME Development

• Legal Committee for mSMEs, Thai SME Federation — Served as Former Chairman / Chief Legal Advisor, providing strategic legal guidance for micro, small, and medium enterprises and contributing to SME policy advocacy. [Appointment News]
• Legal Subcommittee, SME Development Bank of Thailand — Advised on legal and regulatory matters affecting SME financing, risk management, and product structuring in a state-owned development bank.
• SME D Coach, SME Development Bank — Appointed as SME D Coach providing business legal advisory and mentorship to SME entrepreneurs nationwide.
• Legal Advisor, Thai Used Car Dealers Association — Participated in strategic consultation for the establishment of the Association's Academy, contributing legal expertise to automotive industry development.

Science, Technology, and Innovation Governance

• Thailand Institute of Scientific and Technological Research (TISTR) — Served as Advisor on organisation management and innovation structure, Legal Subcommittee member, and Fund Management Committee member, integrating law, governance, and R&D policy.
• National Innovation Agency (NIA) — Joined the Subcommittee on Risk Management and Internal Control and later received NIA R&D funding for the LAS AI-Powered Legal Research system, bridging innovation policy and legal technology deployment.
• TKC–PTJ Brother Strategic Partnership — Participated in the signing ceremony for a business cooperation MOU to expand digital, AI, legal consulting, and cybersecurity services.

Bangkok Metropolitan Policy Research

Since 16 July 2026, he has also served as Legal Advisor to the First Vice-Chairman of the Bangkok Metropolitan Council, providing legal advice in support of that office's work. Appointment announcement

Thundthornthep has produced a comprehensive series of policy research on the Bangkok Metropolitan Council (BMA Council) and Bangkok Metropolitan Administration Law as a knowledge base for Bangkok's development:

• Bangkok Possible — "If the Council Doesn't Develop, the City Doesn't Develop" — Policy writing on council performance, legislative work, public oversight, and Bangkok's development priorities.
• Bangkok Metropolitan Administration Law — Analysis of the structure and 7 powers of the Bangkok Council under the Bangkok Metropolitan Administration Act B.E. 2528 (1985), including the 3-reading legislative process, override mechanism, and distinction between ordinances and regulations.
• Traffy Fondue & Bangkok Law — Analysis of the Traffy Fondue citizen complaint platform in conjunction with the Council's oversight powers, cumulative complaint data, area-based budget allocation, and the Council's role in emergency crises (e.g., the 28 March 2025 earthquake).

Selected media coverage:

• Nation TV — Interview
• Nation TV — Policy Analysis
• Nation TV — Bangkok Council Report

Publications and Legal Writings

Thundthornthep writes legal articles and develops knowledge resources across LASLegal.co.th, LASLegal.tech, and Kelomn.com. His work covers business structures, contracts, real estate, employment, data protection, and the use of AI in legal practice.

Digital Legal Publishing and Knowledge Development

• LASLegal.co.th — Professional articles and legal updates, including the Ecosystem of Business Laws series. Recent contributions include Up (21 August 2026), Control (20 August 2026), and Shield (19 August 2026).
• LASLegal.tech Knowledge — Legal article writing and knowledge development within the LAS digital workspace. Open LASLegal.tech Knowledge (sign-in may be required).
• Kelomn.com — Legal writing and editorial development for a business law knowledge platform, using accessible explanations, practical examples, and visual learning resources. The platform also publishes material through its Nong Waen editorial character. Explore Kelomn articles

Selected Kelomn topics include joint ventures and consortiums, business entity structures, and food advertising requirements. These links lead to the original Thai-language articles.

Peer-Reviewed Journal Articles (ASEAN Citation Index)

Academic Thesis

Academic Presentations

Latest Legal Guides — Blue Ocean Series

Newly published comprehensive legal guides covering high-demand topics in Thai business law:

Conference Papers and Legal Knowledge Articles

Honours and Awards

• Research Award — Received recognition at the 10th National and 5th International Academic Conference for the research paper on "Laws Related to the Development of Mixed-Use Real Estate Projects in Thailand."
• NIA R&D Funding Award — Awarded research and development funding from the National Innovation Agency (NIA) for the LAS AI-Powered Legal Research Advisory system, supporting the development of legal research technology.
• Published Legal Author — Published the article "Legal Guidelines for Condominium Earthquake Damage Actions for Co-owners and Juristic Person Committee," a pro bono piece aimed at enhancing public legal awareness following the Bangkok earthquake crisis .
• TISTR Innovation Advisor Appointment — Formally appointed by the Thailand Institute of Scientific and Technological Research as Advisor on Organisation Management and Innovation Structure.
• Government Appointment Credentials — Formally recognised through multiple Royal Thai Government and public-organisation orders and appointments as legal advisor, committee member, and expert across ministries, state enterprises, and national-level commissions.

Professional Credentials and Expertise

Thundthornthep is a Certified Notarial Services Attorney, licensed by the Lawyers Council of Thailand. He has more than 20 years of combined experience in private sector, in-house, and government advisory roles. His core areas of expertise include:

• Real estate and property development law
• Hotel and branded residence structures
• Mixed-use and landmark development advisory
• Corporate and commercial law
• Investment and joint venture structuring
• Government regulatory and policy advisory
• SME and mSME legal frameworks
• Labour and employment advisory
• Personal Data Protection (PDPA) compliance
• AI-powered legal research and knowledge systems

Selected News and Media

Recent Updates — July–August 2026

• AI and legal education at Bangkokthonburi University — Special lecture on preparing law students for AI-assisted professional practice; reported 19 August 2026.
• NIA reviews Kelomn.com development — Thundthornthep and the LAS team presented project progress on 10 August 2026.
• Bangkok Metropolitan Council advisory appointment — Appointed Legal Advisor to the First Vice-Chairman, effective 16 July 2026.

Earlier Appointments and Coverage

• NIA Partners with LAS for AI Funding Approval — NIA granted R&D funding to LAS for development of the "AI-Powered Legal Research System." [LAS News]
• Legal Advisor Appointment — Rice Department — Thundthornthep appointed as Legal Advisor to the Director-General of the Rice Department, Ministry of Agriculture and Cooperatives. [LAS News]
• TISTR Appoints Thundthornthep as Innovation Advisor — Thailand Institute of Scientific and Technological Research appointed him as Advisor for organisational management and innovation. [LAS News]
• IEAT — Industrial Estate Authority of Thailand — Earlier legal and regulatory advisory work for industrial estate governance; the two appointments listed above are completed. [IEAT News]
• Thai SME Federation Appoints Chief Legal Advisor — Thundthornthep appointed as Chairman of Legal Advisory Committee. [LAS News]
• SME D Coach Appointment — Appointed as SME business legal coach by SME Development Bank of Thailand. [SME D Bank]
• Thai Used Car Dealers Association — Academy Consultation — Legal advisor for the establishment of the Association's Academy. [TUCDA]
• Rice Department Partners with DIPROM on De-Carbon Rice Policy — Attended strategic meeting between Thailand's Rice Department and Department of Industrial Promotion. [LAS News]
• TKC–PTJ Brother Strategic Partnership MOU — Participated in the signing ceremony for MOU to expand digital, AI, legal consulting, and cybersecurity services. [LAS News]
• LAS Business Law & Tax Lecture at Kasetsart University — Led a business law and tax lecture for marketing students at the Faculty of Business Administration. [LAS News]
• The Drafting of National Education Act — Served as legal expert for members of parliament in the drafting of the National Education Act. [LAS News]
• Honorary Advisor Appointment — A former Deputy Permanent Secretary of the Ministry of Labour accepted the position of honorary advisor to LAS. [LAS News]
• Amazing Muay Thai World Festival — Participated in the historic Thai martial arts showcase at a Roman amphitheatre, celebrating Thai-Italian friendship. [LAS News]

National Press Coverage (Siam Rath)

• NIA Supports Thundthornthep Yamoutai and LAS Team to Develop AI for Thai Legal Services — Press release on NIA's R&D funding for the LAS AI-Powered Legal Research System. [Siam Rath]
• Political Studies Group Urges BMA Council to Accelerate Role Reform and Push Urban Development Laws — Coverage of Thundthornthep's policy research on the Bangkok Metropolitan Council. [Siam Rath]
• Thundthornthep Yamoutai's Role in Energy Law Development and National Innovation Organisations — Profile on his contributions to energy legislation reform and innovation governance. [Siam Rath Archive]
• LAS Strengthens Real Estate Legal Advisory Team — LAS recruits a leading real estate law expert to expand property advisory capabilities. [Siam Rath Archive]
• Condominium Earthquake Damage: What Co-owners and Juristic Persons Must Know — Pro bono legal guidance article following the Bangkok earthquake crisis. [Siam Rath Archive]
• STOU and Ombudsman Joint Seminar on Whistleblower Protection Law Reform — Academic seminar proposing legislative amendments for informant protection. [Siam Rath Archive]

Other Media Coverage

• Condominium Earthquake Damage — Legal Guide for Co-owners — Published on LINE TODAY via THE POINT. [LINE TODAY / THE POINT]

Nation TV — Bangkok Metropolitan Council Analysis

• Nation TV — Interview on Bangkok Metropolitan Council
• Nation TV — Bangkok Council Policy Analysis
• Nation TV — Council Performance and Bangkok Development Report

Official Channels

The following are the only official and verified channels of Thundthornthep Yamoutai, Ph.D. and Legal Advance Solution Co., Ltd. (LAS). Please verify any communication claiming to be from Thundthornthep Yamoutai or LAS through these channels.