Family, children and consent letters

At minimum: full names and ID or passport numbers of principal and attorney-in-fact spelled exactly as in their identity documents, the authorised act described specifically, the asset or document number involved, an end date or terminating condition, the place and date of signing, the principal's signature, and witness signatures where the receiving authority requires them.

Someone of legal age and capacity with no conflicting interest in the matter — the buyer should not act for the seller in the same sale. Most authorities also ask for a copy of the attorney-in-fact's ID card or passport signed as a true copy, attached to the mandate.

Petitions are filed by a lawyer. An heir abroad can sign the power of attorney to the lawyer and the heirs' letter of consent before a Royal Thai Embassy or Consulate officer and courier the originals for filing. Some courts still want the heir to testify in person or by video conference, so plan for that possibility.

A consent letter records that an heir does not object to a named person becoming administrator; a power of attorney lets someone act in your place. They are not interchangeable, and estate cases usually need both, together with the death certificate, the house registration showing the deceased struck off, and proof of heirship.

The non-travelling parent should state the child's name, passport number, destination, travel dates, who will accompany the child, and contact details, and sign before a Notarial Services Attorney in Thailand or a Royal Thai Embassy officer abroad. Some destinations also want the letter translated into their language and legalised.

For applicants under 20 the Department of Consular Affairs requires the persons with parental authority to attend or to provide a consent letter with a properly certified signature. If one parent is abroad, that consent is signed before a Royal Thai Embassy or Consulate officer. Check the current document list at consular.mfa.go.th before booking.

A consensual divorce registration normally requires both spouses to appear at the district registrar. The Department of Provincial Administration has procedures for cross-registrar divorces and for a spouse who is overseas, handled through a Royal Thai Embassy — not by authorising a third party to sign instead. Ask the district office where you intend to file before preparing documents.

Name spelling that does not match the passport or ID card; scope either too broad or not covering the actual act; blanks or uninitialled corrections; insufficient stamp duty; an outdated form; the wrong certification order, such as going to the consular office before the signature is certified; and translations that omit seals or the reverse side of pages.

Yes, using Department of Lands form T.D.21 completed in full: title deed number, parcel and survey numbers, sub-district, district and province, and a scope that expressly covers signing the sale contract and receiving the price. Never leave blank spaces to be filled in later, which is the most common route to fraud; strike through blanks and initial them. Attach passport copies certified as true copies, including every page bearing an immigration stamp.

Marriage requires both parties to declare their intention in person before the registrar; it cannot be delegated. Consensual divorce at a district office can in limited cases be handled through a specific mandate under Department of Provincial Administration practice, with full witnesses and the registrar's discretion to test genuine consent. Ask the district office where you will file before preparing papers.

A petition to appoint an estate administrator must come from an heir or an interested person, but an heir abroad can authorise a lawyer to file and conduct the proceedings, together with consent letters from the other heirs. Documents signed abroad follow the usual legalisation and translation route. Transfers after the court order are then carried out by the court-appointed administrator.

The one that matches the passport or ID card used for identification. If your signature has changed, sign in both the old and new styles with a notary's or certifying lawyer's note. Officials frequently reject documents where the spelling of a name differs from the passport by even one letter.

Yes. The Revenue Department has its own mandate form for filing, correspondence and collecting refunds. Stamp duty applies as for any power of attorney, and certified copies of both parties' ID or passport are attached. Where a refund cheque names the taxpayer, the bank may require further documents before crediting the representative's account.

Check five points in order: names and identity numbers exactly as in the passport; a scope tied to a named transaction and identifiable asset; place and date of signing present; no blanks that could be completed later; and a certification format matching what the receiving authority publishes. Ask the receiving authority to approve the draft before it is signed before a notary, because any change after certification restarts the whole chain.

A minor needs the consent of the legal representative for significant transactions, and disposing of a minor's immovable property requires court permission. A person adjudged incompetent cannot give a mandate; the guardian acts within the limits set by law and, in some cases, with court approval. The land registrar will ask to see the court order.

Use the mandate form attached to the department's registration application and list the exact filings delegated — changing directors, increasing capital, moving the registered office. The principal must be a director with binding authority per the company affidavit, stamp duty must be paid, and certified copies of ID or passport attached.

Land Office registrations use the Department of Lands' own power of attorney form, not a general POA. Prepare the completed form with no blank spaces, the original title deed, ID or passport and house registration of both principal and attorney, with certified copies. State exactly what is delegated — sale, mortgage or transfer of a specific plot — sign before two witnesses, and if signed abroad, have it notarised, legalised by the Thai embassy and certified by the Department of Consular Affairs. The most common causes of rejection are blank spaces left in the form, a wrong title deed number, or a name spelt differently from the deed. We check the form and the certification chain before filing.

Yes — filing, claiming refunds, receiving correspondence and giving statements can all be delegated, but list the scope item by item: which tax year, whether the attorney may receive refund cheques, and how far they may give statements on your behalf. You will need the stamped power of attorney, certified copies of both parties' ID or passport, and the return's supporting documents. If a refund is involved, the authority to receive funds must be stated expressly or the officer will not release it. Keep the authority narrow and add an expiry date.

Five recurring causes: name spelling that differs from the passport by even one character; authority so broad the receiving officer cannot interpret its limits; missing proof of the corporate signatory's authority; certification steps performed out of order, such as translating before the original is certified; and documents older than the accepted window. Reviewing the draft and the certification sequence before signing removes most of this risk.