Signature Authentication by Notarial Services Attorney in Siam Square One
Licensed Thai Notarial Services Attorney serving the Siam Square One area (Siam BTS) — from THB 1,500, completed same day.
- From
- ฿1,500
- Time
- 30 min
- Customer satisfaction
- 4.9/5 (655 cases (internal survey))
- License
- Lawyers Council
- Area
- Siam Square One
- Call
- +66 94-895-8999
Siam Square One is one of our most-served areas for Signature Authentication by Notarial Services Attorney. Our attorneys are registered Notarial Services Attorneys with the Lawyers Council of Thailand. Service starts at THB 1,500 with same-day completion, plus optional MFA + embassy legalization for use in 190+ countries. We offer both office appointments and on-site attorney visits within the Siam Square One area.
Pricing: from THB 1,500 — up to THB 5,000 — Service by NYC Legal & Notary Service Co., Ltd., DBD reg. 0435567000061
ทีมทนาย Notary Public ที่จดทะเบียนถูกต้อง 6 ท่าน
Why clients in Siam Square One choose NPT
- Attorneys travel from our HQ on Lat Phrao 95 to Siam Square One within 60 minutes
- Notarization compliant with Lawyers Council of Thailand standards, accepted by MFA + 190+ embassies
- 30+ languages supported including English, Japanese, Chinese, Korean, German, French
- One-stop service: notarization + translation + MFA legalization + embassy attestation
- Over 1,000 clients per year served in the Siam Square One area for Signature Authentication by Notarial Services Attorney
Service in nearby locations
We serve all nearby districts — click for area-specific pricing and process.
Other areas served for Signature Authentication by Notarial Services Attorney
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Book Signature Authentication by Notarial Services Attorney in Siam Square One
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Real customer questions, answered by our attorneys
Selected from our knowledge base of 3,300+ real questions we have answered.
How are foreign forensic science and DNA testing laboratory accreditation files legalized?
Practitioner's view to "How are foreign forensic science and DNA testing laboratory accreditation files legalized?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: Police clearance certificateHow to get an affidavit notarized by a Thai lawyer?
Per the Lawyers Council of Thailand's Notarial Services rules to "How to get an affidavit notarized by a Thai lawyer?" — Standard turnaround is 1 business day; same-day service is available by appointment for straightforward files. You must sign in front of the attorney with your original passport; the attorney affixes the notarial seal, signature, register number and date so the document is accepted abroad. Send a photo of your document to LINE @Thainotary and we'll quote and schedule within 15 minutes.
Related service: Notary Public ThailandWhat attestation standards govern foreign space exploration and satellite launch contracts?
Short answer to "What attestation standards govern foreign space exploration and satellite launch contracts?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
Related service: Embassy legalisationWhat are the specific eligibility requirements and document limits for requesting 1-day express MFA legalization?
Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What are the specific eligibility requirements and document limits for requesting 1-day express MFA legalization?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: MFA consular legalisationWhat acceptance criteria govern foreign electronic notary documents at the Thai MFA?
Practitioner's view to "What acceptance criteria govern foreign electronic notary documents at the Thai MFA?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: Notary Public ThailandWhat is the fundamental legal difference between traditional MFA document Legalization and an Apostille stamp?
Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What is the fundamental legal difference between traditional MFA document Legalization and an Apostille stamp?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
Related service: MFA consular legalisationWhat specialized attestation workflows apply to foreign aerospace maintenance engineering licenses?
Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What specialized attestation workflows apply to foreign aerospace maintenance engineering licenses?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
Related service: MFA consular legalisationWhere can I find the official registry list of translators recognized and accepted by the Thai MFA Consular Department?
How we handle this in practice to "Where can I find the official registry list of translators recognized and accepted by the Thai MFA Consular Department?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: MFA consular legalisationKey facts at a glance — Notary Public certification
- Indicative price
- From THB 800–3,000 per document set
- Turnaround
- Typically 1–2 business days (same-day rush available)
- What you receive
- Signed and sealed by a Thai Lawyers Council–registered Notarial Services Attorney
- Service coverage
- Nationwide Thailand — courier and fully online intake, no in-person visit required.
Figures above are indicative ranges; the final quote depends on page count, language pair and receiving authority.
Ask us or request a quote right away
Documents you need to prepare — Notary Public certification
- 1Valid original passport or Thai ID card of the person signing
- 2The original document to be notarised — do not sign in advance; signing must occur before the attorney
- 3Details of the receiving authority — university, embassy, or overseas counterparty
- 4Company affidavit and power of attorney if signing for a legal entity
Before you start
- • Some documents have a limited acceptance window, so start the process close to your actual filing date.
- • Tell us early if you need a rush job so we can reserve attorney time and the courier slot.
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