Which documents should always be reviewed before signing?

In practice, anything with a long commitment or a large sum: leases, key employment contracts, construction or subcontract agreements, distribution agreements, loans and security, and anything with a jurisdiction or arbitration clause.

A demand letter arrived. Must I reply at once?

Read it fully for any deadline it states, then gather the contract and correspondence before replying. A fast but careless reply usually costs more than a prepared one — though letting the deadline pass in silence is its own risk.

How are fees calculated?

It depends on the type of work, the document volume and the complexity, which is why we do not publish figures. The fastest route is to send the details and what you already have, so the scope can be assessed and then agreed in writing.

Should I start with the law firm or the accounting firm?

It depends on the trigger. A letter from the tax authority or a filing problem usually starts on the accounting side; a contract, dispute or letter from a counterparty usually starts on the legal side. We have a short self-check that points your case to the right desk.

Can the same firm certify documents too?

Certifying signatures and documents requires a lawyer licensed for notarial services, which we cover on our notary page. If the document is going abroad, check first which layers the destination wants and in what order.

Our matter is in another province. Can we still work together?

Yes. We consult and receive documents online and travel where a matter requires it. Anything that must happen in front of an authority or a court is planned around that location and its schedule.

Decision

Hire a lawyer per matter or keep a law firm on an ongoing basis?

A comparison of the two ways businesses use a law firm, drawn from real work: contract review, replying to demand letters, handling summonses, and getting paperwork right before trouble starts.

Zura Labs & Business Hub Co., Ltd.

Short answer

Should a business call a lawyer only when something happens, or keep a firm involved continuously?

If legal work arrives in one-offs — one lease to review, one case — per-matter engagement is straightforward with a clear scope. If you sign often, carry overdue receivables, employ several people, or have had a dispute before, ongoing support helps where it matters most: before signing rather than after a problem. Either way, agree the scope, how fees are calculated and who owns the matter.

The highest-value work is usually pre-signature: changing wording is easier than arguing about it later.
Demand letters and summonses come with deadlines; delay narrows your options.
Well-kept paperwork — contracts, delivery notes, written exchanges — is what decides matters in practice.
Outcomes depend on the facts, the evidence and the court's judgment; nobody can guarantee a result.

Per-matter engagement

Scope agreed per job: one contract reviewed, one letter drafted, one case handled.

Ongoing support

A team that already knows your context, reviews before you sign and can respond the moment something arrives.

Side-by-side comparison

Criterion	Per-matter engagement	Ongoing support	Usually suits
Clarity of scope	Very clear: defined per piece of work, with what is and is not included.	Needs a careful written scope of what ongoing support covers and what is charged separately.	Per-matter engagement
Speed when something urgent lands	You explain the background from scratch, spending part of the deadline on context.	The team already knows the contracts and counterparties and can assess options sooner.	Ongoing support
Preventing problems before signing	Happens only for the contracts you send; the ones you do not send go unreviewed.	You can set a rule that certain contracts always pass review before signature.	Ongoing support
Predicting spend	You pay for work that happens; a quiet year carries nothing.	Predictable on a service cycle, but only worthwhile if the volume is actually there.	Equal
Continuity of case knowledge	When a matter ends, the knowledge scatters; if it returns, it must be reassembled.	History stays in one place and carries over when the same counterparty reappears.	Ongoing support
Business size it suits	Early-stage businesses that sign rarely and have no disputes yet.	Businesses that sign often, carry receivables, employ several people or deal across borders.	Equal
Documents needing certification	Can be handled as a single job, such as certifying a signature on one power of attorney.	Can become a standing process when your company certifies documents regularly.	Equal

Clarity of scope

Per-matter engagement: Very clear: defined per piece of work, with what is and is not included.
Ongoing support: Needs a careful written scope of what ongoing support covers and what is charged separately.

Usually suits: Per-matter engagement

Speed when something urgent lands

Per-matter engagement: You explain the background from scratch, spending part of the deadline on context.
Ongoing support: The team already knows the contracts and counterparties and can assess options sooner.

Usually suits: Ongoing support

Preventing problems before signing

Per-matter engagement: Happens only for the contracts you send; the ones you do not send go unreviewed.
Ongoing support: You can set a rule that certain contracts always pass review before signature.

Usually suits: Ongoing support

Predicting spend

Per-matter engagement: You pay for work that happens; a quiet year carries nothing.
Ongoing support: Predictable on a service cycle, but only worthwhile if the volume is actually there.

Usually suits: Equal

Continuity of case knowledge

Per-matter engagement: When a matter ends, the knowledge scatters; if it returns, it must be reassembled.
Ongoing support: History stays in one place and carries over when the same counterparty reappears.

Usually suits: Ongoing support

Business size it suits

Per-matter engagement: Early-stage businesses that sign rarely and have no disputes yet.
Ongoing support: Businesses that sign often, carry receivables, employ several people or deal across borders.

Usually suits: Equal

Documents needing certification

Per-matter engagement: Can be handled as a single job, such as certifying a signature on one power of attorney.
Ongoing support: Can become a standing process when your company certifies documents regularly.

Usually suits: Equal

Per-matter fits when

There is one defined job: reviewing a lease, drafting a notice.
The business signs rarely and has nothing outstanding.
You want scope controlled piece by piece.
It is a one-off certification for a document heading abroad.

Ongoing support fits when

You sign with customers or subcontractors routinely.
Several receivables are overdue and collection needs a consistent process.
You employ several people and employment paperwork needs to be in order.
You have had a dispute before, or you trade with overseas counterparties.

The details in one place

Key facts

Agree in writing: Scope, how fees are calculated, who owns the matter, contact channel and progress reporting.
Bring to the first meeting: The relevant contracts, all correspondence, delivery or payment records, and anything received from the other side.
When a summons arrives: It carries a deadline stated on the document. Keep the envelope and date of receipt, and do not contact the other side before taking advice.
What we do not guarantee: Case or negotiation outcomes: they depend on the facts, the evidence and the judgment of the court or the other side.
What we do not take on: Unlawful work, nominee shareholding to sidestep ownership rules, and certifying facts that cannot be verified.
Where we actually sit: Bangkok (Wang Thonglang) and Khon Kaen, with online consultations and travel where a matter requires it.

Where this usually goes wrong

Signing first and sending for review later, which sharply narrows the options.
Answering a demand letter with unreviewed personal messages that become evidence against you.
Letting the deadline on a summons run while still taking no advice.
Keeping no written record, so there is nothing to prove what was agreed.
Using an internet template without adapting it to the actual deal and to Thai law.

Questions we are asked about this choice

Which documents should always be reviewed before signing?: In practice, anything with a long commitment or a large sum: leases, key employment contracts, construction or subcontract agreements, distribution agreements, loans and security, and anything with a jurisdiction or arbitration clause.
A demand letter arrived. Must I reply at once?: Read it fully for any deadline it states, then gather the contract and correspondence before replying. A fast but careless reply usually costs more than a prepared one — though letting the deadline pass in silence is its own risk.
How are fees calculated?: It depends on the type of work, the document volume and the complexity, which is why we do not publish figures. The fastest route is to send the details and what you already have, so the scope can be assessed and then agreed in writing.
Should I start with the law firm or the accounting firm?: It depends on the trigger. A letter from the tax authority or a filing problem usually starts on the accounting side; a contract, dispute or letter from a counterparty usually starts on the legal side. We have a short self-check that points your case to the right desk.
Can the same firm certify documents too?: Certifying signatures and documents requires a lawyer licensed for notarial services, which we cover on our notary page. If the document is going abroad, check first which layers the destination wants and in what order.
Our matter is in another province. Can we still work together?: Yes. We consult and receive documents online and travel where a matter requires it. Anything that must happen in front of an authority or a court is planned around that location and its schedule.

Keep going from here

Zura Labs & Business Hub Co., Ltd.Content reviewed on 21 September 2026

Bangkok office: 61 Soi Lat Phrao 95 (Prangthip), Khlong Chao Khun Sing, Wang Thonglang, Bangkok 10310

Khon Kaen office: 680/45 Na Mueang Road, Nai Mueang, Mueang Khon Kaen, Khon Kaen 40000

Mon–Fri 09:00–18:00 (ICT)

098-897-9292 LINE OA @ZURA contact@zura.co.th

Work that requires a licensed practitioner (audit, legal representation, licensed tax filings) is carried out by licensed practitioners. Timelines depend on the authority's review. We do not guarantee search rankings.