What an M&A Lawyer Actually Does in a Private Business Sale
An M&A lawyer in a private business sale does far more than draft documents. From the moment you begin thinking about structure, through due diligence, negotiation, and closing, your lawyer is the central coordinator of the transaction. The lawyer’s role protects your tax position, manages the legal risk of what you are representing to the buyer, negotiates the terms that determine how much you actually keep after adjustments and indemnification, and ensures the deal closes correctly. Hiring an M&A lawyer early, before the letter of intent is signed, consistently produces better outcomes than bringing one in after the commercial terms are already agreed.
Why This Article Exists
Most business owners have only one experience selling a company. You may know your industry, your customers, and your financials, but you are unlikely to have worked through a purchase agreement negotiation, a due diligence process, or a closing agenda before. The buyer’s legal team has. In most private M&A transactions, the buyer’s counsel drafted the purchase agreement and knows exactly where the risk sits.
A skilled M&A lawyer levels that asymmetry. This article explains what your lawyer actually does, phase by phase, so you know what you are getting for the fee and why the timing of when you engage matters.
Phase 1: Pre-LOI; Deal Structure and Tax Position
Most sellers engage their lawyer after the letter of intent is signed. This is a mistake. The single most important decisions in a business sale are made before the LOI is executed, and once commercial terms are committed to in an LOI, they are extremely difficult to change.
Your M&A lawyer’s role in this phase:
Transaction structure advice: The choice between a share sale and an asset sale has profound tax consequences for both parties. A share sale generally produces a capital gain for the selling shareholder, with the potential to shelter up to $1,275,000 of that gain under the Lifetime Capital Gains Exemption (LCGE), if the shares qualify as Qualifying Small Business Corporation (QSBC) shares. An asset sale generates proceeds at the corporate level, where the blended effective tax rate is typically higher. Your lawyer works with your accountant to confirm which structure makes sense and to advise you on what each structure means for the buyer’s counter-position in negotiations.
CCPC and QSBC eligibility review: If you intend to claim the LCGE, your shares must satisfy the three QSBC tests: the 90% at-disposal test, the 50% look-back test, and the 24-month holding period. Your lawyer can identify whether any balance sheet items or corporate structure issues will disqualify the shares and whether there is time to address them before a sale.
NDA review: Your lawyer reviews the non-disclosure agreement before you share confidential business information with a prospective buyer. Most NDAs presented by buyers are drafted in the buyer’s interest. The specific issues are the scope of confidential information, permitted use, exclusions, residual clauses, and the term and survival provisions.
Advising on LOI terms: An LOI is described as “non-binding,” but the commercial terms in it (purchase price, structure, exclusivity period, key conditions, and post-closing obligations) form the baseline for the entire negotiation that follows. Sellers who sign an LOI without legal review regularly find themselves negotiating against a document that was not drafted with their interests in mind. Your lawyer reviews the LOI and advises on which terms require negotiation before you sign.
Phase 2: Due Diligence; Organizing and Managing Disclosure
Once the LOI is signed, the buyer’s team conducts due diligence. This is the systematic investigation of your business: its financials, contracts, employees, intellectual property, regulatory compliance, litigation history, tax position, and any other area the buyer considers material.
Your M&A lawyer’s role in this phase is both defensive and strategic.
Data room organization: Your lawyer advises on how to organize and populate the virtual data room. This is not merely administrative. The information you disclose in due diligence becomes the factual foundation for the representations and warranties you will make in the purchase agreement. Overly broad disclosure can create obligations you did not intend. Failing to disclose known issues creates warranty liability. Your lawyer helps you structure the disclosure to be complete, accurate, and appropriately qualified.
Responding to due diligence requests: The buyer’s counsel will submit a due diligence request list, often running to dozens of categories. Your lawyer coordinates your responses, flags which requests are standard and which are unusually broad, and advises on which information can reasonably be withheld at this stage.
Identifying issues early: Experienced M&A counsel has seen what kills deals and what creates post-closing liability. Your lawyer reviews the business for issues that the buyer will find and advises you on how to address them proactively: an expired permit, a contract with no change-of-control consent, an unregistered security interest on a key piece of equipment, or a missing employment agreement for a key employee. Surfacing these issues before the buyer does puts you in control of the narrative.
Phase 3: Purchase Agreement; Negotiation and Drafting
The purchase agreement is where the risk allocation between buyer and seller is determined in binding terms. In most private M&A transactions, the buyer’s counsel prepares the first draft. Every provision in that draft was written to protect the buyer.
Your M&A lawyer’s role:
Reviewing and marking up the purchase agreement: Your lawyer reads the entire agreement and produces a detailed markup identifying every provision that requires negotiation. Key areas: the purchase price mechanics (and what adjustments can reduce the price after closing), the representations and warranties (what you are guaranteeing about the business and what the consequences are of getting it wrong), the survival period (how long after closing the buyer can bring a claim), the indemnification provisions (your financial exposure if a rep is breached), the basket and cap (the floor and ceiling on indemnification claims), any holdback or escrow, non-compete and non-solicitation covenants, and closing conditions.
Negotiating on your behalf: Your lawyer conducts the commercial negotiation with the buyer’s counsel, advocating for the positions that protect your interests. Common seller objectives: narrowing the scope of representations (or qualifying them to knowledge); reducing the survival period; capping indemnification exposure at a fraction of the purchase price; limiting the scope of any holdback; and ensuring the non-compete is drafted narrowly enough that you can operate in your next chapter.
The disclosure schedule: The purchase agreement representations are qualified by a disclosure schedule in which you identify specific exceptions. Your lawyer drafts the disclosure schedule in parallel with the negotiation, ensuring that the exceptions accurately reflect the state of the business and provide real protection against warranty claims.
Tax provisions: If the sale involves a non-resident seller or specific tax elections, your lawyer coordinates the tax provisions with your accountant: the filing of tax clearance certificate applications under ITA s. 116 for non-resident sellers, the allocation of purchase price for tax purposes, any adjustments to closing mechanics required by tax election filings, and the handling of pre-closing tax liabilities.
Phase 4: Closing; Execution and Coordination
The closing of a private M&A transaction involves the simultaneous execution of a large number of documents, the satisfaction of closing conditions, the transfer of funds, and the registration or filing of any required legal instruments. Coordinating all of this, on a timeline that works for both sides, is itself a significant piece of work.
Your M&A lawyer’s role:
Preparing the closing agenda: Your lawyer prepares a comprehensive list of every document to be executed at closing, every condition to be satisfied, and the sequence in which things need to happen. In a transaction with multiple parties, advisors, and financing sources, the closing agenda is the operational plan.
Drafting closing documents: Beyond the purchase agreement itself, closing requires officers’ certificates; board and shareholder resolutions authorizing the transaction; direction letters for the flow of funds; releases; bring-down certificates confirming that representations remain accurate; resignation letters from departing directors and officers; and, in a share sale, share transfer documentation, including share certificates and register updates.
Escrow and funds coordination: Your lawyer coordinates with the buyer’s counsel, the escrow agent if applicable, and the lenders to ensure funds flow correctly at closing. In Ontario, law firms hold sale proceeds in trust pending confirmation that all closing conditions are satisfied. The release of funds is authorized by counsel on both sides once the conditions are met.
Post-closing filings: Some transaction documents require post-closing registration or filing: PPSA discharges and registrations, corporate registry updates, and any required regulatory filings. Your lawyer manages these.
When to Hire an M&A Lawyer
Before the LOI is signed: This is the ideal moment. Your lawyer reviews the NDA, advises on structure, and reviews the LOI before you commit to commercial terms. Engaging at this stage gives you the maximum ability to shape the transaction.
Before due diligence begins: If you signed the LOI without counsel, engage your lawyer before you open the data room. Your lawyer can still advise on how to structure your disclosure, which is one of the most important pre-closing tasks.
Before you accept a first draft purchase agreement: The buyer’s lawyer drafted that agreement. Do not review it yourself and respond informally. Engage your counsel before you mark up or discuss any provision of the purchase agreement.
The moment you have a serious buyer: If a credible buyer has approached you and signed an NDA, you have a transaction in progress. That is the right time to engage M&A counsel, regardless of whether an LOI has been presented.
What You Should Not Handle Alone
Some sellers attempt to negotiate without legal representation, particularly on smaller transactions. The specific risks:
The representations and warranties: Most sellers do not appreciate that the reps they sign govern their financial exposure for years after closing. A seller who negotiates the purchase agreement without counsel regularly makes representations that are broader than intended, with survival periods and indemnification exposure that were not understood when signed.
The non-compete: Non-compete covenants in Ontario are enforceable to the extent they are reasonable in scope, geographic area, and duration. A broadly drafted non-compete can restrict your ability to work in your industry for years. Your lawyer can ensure the scope is limited to what is genuinely necessary to protect the buyer’s acquisition.
The holdback and working capital adjustment: These are the mechanisms by which the buyer reduces the purchase price after closing. The working capital peg, the permitted variance, the true-up timeline, and the accounting methodology are highly negotiable provisions that can affect the net proceeds you receive by hundreds of thousands of dollars. Sellers who do not understand these mechanics regularly find their post-closing adjustment significantly larger than anticipated.
ITA s. 116 and non-resident obligations: If you are a non-resident of Canada selling shares or taxable Canadian property, ITA s. 116 requires CRA notification and creates a withholding obligation on the buyer. Your lawyer manages this process, including the filing of Form T2062 and, if applicable, negotiating a holdback against the s. 116 withholding with the buyer.
M&A Legal Fees: What to Expect
Legal fees in private M&A transactions are deal-specific and depend on deal size, complexity, the number of negotiating rounds, and the extent of due diligence.
Most M&A lawyers bill on an hourly basis. Flat fees are available for smaller, more standardized transactions. The fee quoted at engagement reflects an estimate based on the anticipated scope; the final fee depends on how the transaction unfolds, primarily on how contentious the negotiation is and how many rounds of revision the purchase agreement requires.
Relative to the value of the transaction, M&A legal fees are a small number. On a $3,000,000 sale, the difference between a well-negotiated indemnification cap and an uncapped regime can exceed $500,000 in potential exposure. The difference in how the non-compete is drafted can determine whether you are able to start a competing business in two years or five. These outcomes are not visible in the fee quote; they are visible in the terms of the deal you close.
How Kalfa Law Firm Works With Selling Shareholders
At Kalfa Law we act for business owners, not institutions. Our M&A practice is built around the private business sale: the exiting founder, the retiring partner, and the family business in its third generation selling to a strategic acquirer or private equity buyer. We have done this enough times to know where the risk sits and where the negotiating leverage is.
We start with your tax position. Before we focus on the legal mechanics, we confirm that the transaction structure maximizes the after-tax proceeds you actually receive. We work directly with your accountant or bring in a tax partner if needed, and we make sure the legal documents reflect the tax plan.
We are direct. When you ask how a provision affects you, we tell you exactly what it means in plain language. When a term is standard and not worth fighting over, we say so. When a term creates real risk, we escalate and negotiate hard.
We keep you informed without overwhelming you. You will know what we are negotiating, why it matters, and where we are in the process. You will not receive a large bill at the end of a process you did not understand.
Meet the M&A team at Kalfa Law Firm; book an introductory call
FAQs:
Shira Kalfa, BA, JD, Partner and Founder
Shira Kalfa is the founding partner of Kalfa Law Firm. Shira’s practice is focused in corporate-commercial and private M&A law including corporate reorganizations, corporate restructuring, mergers and acquisitions, commercial financing, secured lending and transactional law.
© Kalfa Law Firm | August 19, 2026
The above provides information of a general nature only. This does not constitute legal or accounting advice. All transactions or circumstances vary, and specified legal advice is required to meet your particular needs. If you have a legal question you should consult with a lawyer.
