How Much Do M&A Attorney Fees Cost? Fee Structures and Estimates for Legal DD, SPAs, and Closing

Hello, I'm Noriaki Asato, Representative Attorney at LegalAgent.

When comparing attorney fees for M&A, the first step is to align the scope of work being requested. If you compare amounts alone without confirming "how much legal DD costs," "whether drafting or reviewing the SPA is charged separately," and "whether negotiations with the counterparty and closing are included," you may find after engaging counsel that necessary work was outside the scope of the estimate.

Attorney fees for M&A are mainly set as fixed fees, time charges, or a combination of the two. Even under the same label of "M&A support," the scope of work differs greatly between a case where only legal DD is performed and a case where counsel handles a broad range of work from the LOI through SPA negotiations and closing. The fees and process when LegalAgent handles legal DD and SPA negotiations are set out on our M&A and legal due diligence service page.

How Attorney Fees Are Determined and the Main Fee Structures

Attorney fees for M&A vary within a certain range. This is because the total amount changes depending not only on the size of the target company but also on the depth of legal DD, the drafting and negotiation of the SPA, the number of attorneys involved, and so on. There is no public fee standard that can be uniformly referred to as a third-party market rate, and the fee examples published by individual firms are each based on different scopes of work.

Fee method	How the amount is determined	Items to check in the estimate
Fixed fee	Calculated based on the work and deliverables agreed before commencement	Number of revisions and negotiation rounds, excluded work, conditions for additional fees
Time charge	Calculated based on each staff member's hourly rate and working hours	Staffing composition, expected hours, cap, frequency of progress reports
Combination of fixed fee and time charge	Routine work calculated as a fixed fee, additional work on an hourly basis	At what point billing switches to hourly, whether prior approval is required
Separate estimates by phase	Legal DD, SPA, negotiation, and closing calculated separately	Handover between phases, overall management, scope included in deliverables

Even if an estimate says "legal DD, all-inclusive" or "M&A support, all-inclusive," it does not necessarily include drafting the SPA, negotiating with the counterparty, or closing. In addition to the total amount presented, check one by one the scope of work stated in the estimate and the conditions under which additional fees arise.

It is also worth confirming whether the estimated amount includes or excludes tax, and whether out-of-pocket expenses such as translation costs and travel expenses are billed separately.

LegalAgent publishes a fee example starting from JPY 500,000 (excluding tax) for legal DD in summary report format where the target company was established within the past three years. This is a minimum fee applicable when specific conditions are met and does not indicate the market rate for M&A deals in general. For actual fees, we present an individual estimate before commencement according to the size of the target company, the volume of materials, the areas of focus of the investigation, and so on.

Conversely, even if the initial estimate looks low, the total will grow beyond the original expectation if SPA work is charged separately after the legal DD report is submitted and fees are added for negotiation and closing. It is important not to judge solely by the size of the firm, but to compare by aligning the work required through completion of the transaction on the same terms.

When comparing multiple estimates, check whether, in addition to the total amount, additional questions, interviews, interim reports, and SPA work are included. Under a time charge method, hourly rates of the staff, caps, and the frequency of progress reports are also points of comparison.

Attorney Work Arising at Each Phase of M&A

The work handled by attorneys in M&A can be broadly divided into the following four stages.

• Initial review of the NDA, LOI, transaction structure, and the like
• Conducting legal DD and reporting the findings
• Drafting and negotiating definitive agreements such as the SPA or business transfer agreement
• Closing work, such as managing conditions precedent, checking required documents, and settlement

If an estimate states only "M&A legal work, all-inclusive," check how much of the above is included. An estimate for legal DD does not necessarily include drafting the SPA, and an estimate for the SPA does not necessarily include negotiation with the counterparty, preparation of various minutes, registration, or attendance on the closing date.

In the initial review, in addition to confirming the transaction structure, the parties decide the items to be examined in legal DD, who is responsible for preparing materials, and the target schedule for signing and closing. If this phase is not included in the engagement, the company manages the scope of investigation and the overall schedule internally.

In legal DD, preparing the document request list, reviewing the data room, additional questions and interviews, preparing the report, and internal briefing sessions are each separate tasks. For SPA work, check whether it is limited to preparing or reviewing the first draft, or whether it extends to handling revised versions, attending negotiations, and reflecting DD findings in the contract.

Closing involves confirming whether conditions precedent have been satisfied, checking the status of obtaining necessary permits, licenses, and consents, and checking the documents to be submitted on the day. If you engage an attorney through signing and handle closing in-house, check whether the deliverables include a checklist that can hand over outstanding items and internal persons in charge.

Factors That Affect the Cost of Legal DD

The amount of work required for legal DD is not determined by the number of pages of materials alone. This is because the scope to be examined changes greatly depending on the number of the target company's subsidiaries and businesses, whether permits and licenses are involved, the state of labor issues, and so on.

Even with the same volume of materials, the time required for review differs greatly between a deal where the data room is neatly organized and the parties, execution dates, and terms of contracts are listed, and a deal where file names are inconsistent and it is not even clear whether materials are missing. Which side takes on the work of identifying missing materials and sending questions to the target company also directly affects the estimate.

The report format also affects the estimate. The time required to prepare it differs among a red flag format that concisely summarizes only serious issues, a detailed report format that describes the findings broadly, and a method centered on oral reporting. Decide the necessary depth of the report, taking into account how much information is needed for the internal investment decision and what will be handed over to those handling the SPA.

When a full-scope investigation covering everything in a short period is conducted, multiple attorneys may divide up the review of materials. When review of English-language contracts, investigation of overseas subsidiaries, or checks of industry regulations, the Antimonopoly Act, or the Foreign Exchange and Foreign Trade Act are added, the number of staff and the fees tend to increase. On the other hand, if the target businesses and anticipated risks are limited in advance and reporting is narrowed to serious red flag items, fees can sometimes be kept down.

The purpose, investigation items, and deliverables of legal DD are explained in detail in What Is Legal Due Diligence? Purpose, Process, and Required Materials for M&A Legal DD.

Factors That Affect the Cost of the SPA and Definitive Agreements

The cost of an SPA varies depending on whether a new draft is prepared or the counterparty's draft is reviewed, as well as the number of rounds of negotiation and the design of price adjustment and indemnification provisions. In deals with multiple shareholders, or where preferred shares, stock acquisition rights (stock options), J-KISS, or the like remain outstanding, confirming how the consideration will be distributed and the closing procedures also takes effort.

If legal risks are found in DD, the parties decide whether to have the seller resolve them by the closing date, or to address them through a reduction of the purchase price, representations and warranties, special indemnities, and the like. The materials to be checked and the time needed for consideration differ between an engagement to check only the text of the contract and an engagement to translate DD findings into contract terms.

On the seller's side, counsel checks whether there are any inconsistencies between the materials disclosed to the buyer and the content of the representations and warranties. The scope of work for contract negotiation changes depending on whether it includes preparing the disclosure schedule, negotiating the scope of indemnification, procedures for the resignation of officers, and handling the release of personal guarantees by the business owner. On either the buyer's side or the seller's side, it is difficult to predict accurately in advance how many rounds of revisions will come back from the counterparty, so the number of revisions included in the fixed fee and the criteria for additional fees are agreed in advance.

Who prepares the LOI, the SPA, and related minutes also affects the fees. One option is to engage an attorney only for contract review while handling negotiations and schedule management internally. However, if no one in the company has practical M&A experience, dividing the work too finely can make it difficult to hand over issues, so it may be easier to proceed by engaging an attorney consistently from the LOI through closing. The kinds of provisions included in a definitive agreement are described in The Structure and Key Provisions of an SPA (Share Purchase Agreement).

Differences in Work Between the Buyer's Side and the Seller's Side

On the buyer's side, both legal DD and SPA negotiations are often required, and how far the investigation goes is the central element of the fees. This is because the risks of the target company are identified and then reflected in the purchase price and in the representations and warranties and indemnification provisions of the contract.

On the seller's side, the main work is preparing responses to the legal DD conducted by the buyer, organizing disclosure materials, and handling SPA negotiations. If the seller conducts sell-side DD to understand its own risks before starting the sale, that cost is incurred separately. In deals where the same explanation is given to multiple prospective buyers, preparing the disclosure materials and explanations of risks in advance may reduce the effort of Q&A that arises later.

Information to Share for an Advance Estimate

Sharing the following information at the stage of the initial consultation with an attorney aligns the assumptions of the estimate and makes it easier to receive an accurate proposal.

• Whether you are on the buyer's side or the seller's side
• The anticipated structure, such as a share transfer or business transfer
• The target company's business, size, and whether it has subsidiaries or overseas locations
• The status of the LOI, the data room, and DD
• The desired scope of investigation, report format, and scope of contract work
• The planned dates for signing and closing

If the transaction structure and scope of investigation have not yet been decided, check whether the design itself can be requested as initial work. Another approach is to consult on a limited scope at first and then move on to estimates for legal DD and SPA negotiations once the basic acquisition policy has been settled.

Communicate separately the date of the internal investment decision, the planned date for signing the LOI, the planned date for signing the SPA, and the planned closing date. If you simply say "by the end of the month," it becomes unclear whether you mean submission of the report, contract negotiations, or internal approval. If the deadline for each phase is known, the firm can also anticipate the number of staff needed and the timing of interim reports and reflect them in the estimate. The approach to the scope and fees for legal DD and SPA negotiations is described on our M&A Support page.

Frequently asked questions

How much do M&A attorney fees cost?

There is no uniform standard for M&A attorney fees. They vary depending on how much of legal DD, SPA negotiation and closing you request, the volume of documents, the number of negotiation rounds and the staffing, so you need to compare quotes on aligned terms: whether it is a fixed fee or hourly billing, the services covered, and the conditions for additional fees.

Are legal DD and SPA fees separate?

Legal DD and SPA work are sometimes priced separately. A legal DD quote does not necessarily include drafting and negotiating the SPA, so please check the scope of each of the Q&A, the report, contract work and closing.

What should we tell a firm when requesting an M&A quote?

Conveying whether you are the buyer or the seller, the transaction scheme, the target company's business and size, your desired schedule, the status of the data room, and the desired scope of investigation, report and contract work makes the assumptions for the quote clear.

How much of M&A legal work can we request from LegalAgent?

For both buyers and sellers, we handle everything from initial risk analysis, legal DD, and drafting and negotiation of the SPA and other contracts through closing preparations. Requests limited to the stages you need, such as only legal DD or only SPA negotiation, are also possible.