From Agreement to Closing: Understanding the Key Stages of Deal Execution

Author : Plains America | Published On : 21 Sep 2026

A successful M&A transaction involves much more than reaching an agreement on a purchase price. Once a buyer and seller decide to pursue a transaction, the parties must work through due diligence, financing, legal documentation, negotiations, approvals, and closing requirements.

This stage is often referred to as Deal Execution. It is the point where the transaction moves from an initial opportunity toward a completed deal.

Understanding the execution process can help business owners, buyers, management teams, and investors prepare for the work required after initial interest has been established.

What Is Deal Execution?

Deal execution refers to the process of moving an M&A transaction from an agreed framework toward closing.

The process can include:

• Due diligence

• Financial analysis

• Legal review

• Financing

• Transaction documentation

• Negotiations

• Regulatory requirements

• Third-party approvals

• Closing preparation

The exact process depends on the type, size, and structure of the transaction.

Some deals may move relatively quickly, while others require extensive analysis and negotiation.

Starting With a Letter of Intent

A transaction may reach a significant milestone when a buyer submits a letter of intent, commonly known as an LOI.

An LOI generally outlines major proposed terms, such as purchase price, transaction structure, payment considerations, exclusivity, and other provisions.

Although many LOIs contain both binding and non-binding provisions, the document typically serves as a framework for the next stage of the transaction.

Before signing an LOI, both sides should understand what the document contains and obtain appropriate legal and financial advice.

Conducting Due Diligence

Due diligence is one of the most important components of execution.

The buyer may examine the company's financial, legal, operational, commercial, tax, human resources, technology, and other information.

Financial diligence can include reviewing:

• Revenue

• EBITDA

• Cash flow

• Working capital

• Accounts receivable

• Accounts payable

• Debt

• Capital expenditures

• Tax information

Commercial diligence may examine customers, competitors, market conditions, pricing, and growth assumptions.

Legal diligence can cover contracts, litigation, intellectual property, corporate documents, and regulatory matters.

Reviewing Financial Assumptions

During diligence, buyers may compare the information provided during the initial transaction discussions with underlying records.

This can result in additional questions.

For example, a buyer may want to understand why revenue changed during a particular period or whether certain expenses are recurring.

Differences between preliminary information and detailed diligence findings do not automatically end a transaction. However, they may lead to further analysis or changes to transaction terms.

Financing the Transaction

Many acquisitions require some form of financing.

Depending on the transaction, funding may include cash, debt, equity, seller financing, rollover equity, or a combination.

Lenders may evaluate the target's cash flow, assets, debt levels, industry, and repayment capacity.

Financing requirements can influence transaction structure and closing timing.

Understanding Different Types of Buyers

The buyer's identity can influence how the transaction is approached.

When considering Financial Vs Strategic Buyers, sellers may encounter meaningful differences in investment objectives and transaction analysis.

A strategic buyer may be an existing company seeking to expand its operations. It may see value in acquiring customers, technology, products, employees, geographic presence, or capabilities that complement its existing business.

A financial buyer, such as a private equity investor, may focus more heavily on cash flow, growth opportunities, management, capital structure, and potential investment returns.

These differences can affect the buyer's evaluation of the company and the transaction structure.

Negotiating Transaction Terms

Negotiations can continue throughout the execution process.

Important issues may include:

• Purchase price

• Working capital

• Debt

• Earnouts

• Seller financing

• Rollover equity

• Representations and warranties

• Indemnification

• Employment agreements

• Transition services

• Closing conditions

The headline purchase price is therefore only one part of the overall transaction.

Working Capital Considerations

Working capital can become particularly important as a transaction approaches closing.

The buyer and seller may negotiate a normalized working capital target.

The objective is generally to establish the level of working capital needed for the business to operate normally after closing.

Differences between the agreed target and actual working capital at closing may affect the final purchase price under the transaction agreement.

Legal Documentation

Once the commercial terms are sufficiently developed, attorneys typically prepare and negotiate definitive transaction documents.

Depending on the structure, these can include an asset purchase agreement, stock purchase agreement, merger agreement, disclosure schedules, employment agreements, financing documents, and other supporting documents.

The exact documentation depends on the transaction.

Each party should rely on qualified legal counsel for advice regarding these agreements.

Managing Multiple Advisors

M&A transactions can involve numerous professionals.

Participants may include:

• Investment bankers

• Attorneys

• Accountants

• Tax advisors

• Lenders

• Consultants

• Insurance professionals

• Industry specialists

Coordinating these participants can become challenging.

Clear communication and defined responsibilities can help reduce duplication and keep the transaction moving.

Preparing for Closing

As the transaction approaches closing, the parties typically work through a closing checklist.

This can include confirming financing, obtaining approvals, finalizing legal documents, completing required consents, resolving outstanding diligence questions, and preparing funds transfers.

Small unresolved issues can sometimes delay closing, which is why careful preparation matters.

Post-Closing Transition

Closing is not necessarily the end of the transaction process.

The buyer and seller may have agreed to transition services, employment arrangements, customer introductions, or other post-closing obligations.

A clear transition plan can help maintain business continuity.

Employees and customers may also require appropriate communication depending on the transaction.

Why Organization Matters

M&A execution involves large amounts of information, multiple deadlines, and numerous stakeholders.

A structured process can help the parties track open issues and understand what remains before closing.

Maintaining organized financial information, transaction documents, diligence requests, and communications can make the process easier to manage.

Conclusion

Deal Execution is the stage where an M&A opportunity moves from an agreed framework toward completion. It requires careful coordination of due diligence, financing, legal documentation, negotiations, approvals, and closing requirements.

Understanding the differences between Financial Vs Strategic Buyers can also help sellers anticipate how potential counterparties may evaluate an acquisition.

Every transaction has its own structure and challenges. Business owners and buyers should work with appropriate financial, legal, and tax professionals to understand their specific circumstances and obligations throughout the process.