I’ve helped dozens of entrepreneurs acquire businesses over the years, and I can tell you that buying an existing business is fundamentally different from starting one from scratch. It’s exciting, complex, and if you don’t get the legal side right, it can become very expensive.
The good news? You don’t have to navigate this alone. In this guide, I’ll walk you through exactly how to buy a business in Ontario—from finding the right opportunity to closing the deal. I’ll cover the legal structures, the due diligence process, common pitfalls, and the investment you’ll need to make in legal support. By the end, you’ll understand what’s involved and what questions to ask.
Why Buying an Existing Business Makes Sense
Before we dive into the mechanics of how to buy a business in Ontario, let’s talk about why you’re even considering this route.
Starting a business from zero is hard. You’re building everything: products, customer relationships, systems, team, brand reputation. It takes years to get traction. When you buy an existing business, you’re essentially buying years of that work compressed into one transaction.
You get immediate revenue. You get established customer relationships (assuming they stay). You get a team that understands the operation. You get predictable financials rather than projections. You get a brand that already exists in the market.
Of course, you’re also buying somebody else’s problems. That’s where the due diligence comes in, and why having the right legal guidance is critical.
Step-by-Step: How to Buy a Business in Ontario
1. Finding and Evaluating the Right Opportunity
This isn’t the legal part, but it sets up everything else. You’re looking for businesses that fit your skills, your capital, and your long-term vision.
Talk to brokers, scan online listings, check industry networks. Look at the financials (usually shared under NDA). Run the numbers: What’s the EBITDA? What are the margins? What’s the revenue trend? Is there customer concentration risk (relying on one or two big customers)?
The best deals aren’t always advertised. Many owners still sell quietly through their network. If you’ve got industry connections, use them.
2. Making an Offer and Signing a Letter of Intent
Once you’ve found something interesting, you’ll typically start with a non-binding letter of intent (LOI), sometimes called a term sheet or offer to purchase.
The LOI lays out the big-picture terms: purchase price, what’s included in the sale, key conditions (like financing and due diligence), and a timeline. It’s not legally binding (unless explicitly stated), but it signals your seriousness and gives both parties a framework to work with.
This is where your lawyer should get involved. I often see buyers skip having counsel review the LOI because “it’s not binding anyway.” That’s a mistake. The LOI sets expectations and often becomes the foundation for the purchase agreement. If key terms are vague now, you’ll spend months negotiating later.
3. Conducting Due Diligence
Due diligence is your opportunity to confirm that the business is what the seller says it is. This is where deals often fall apart—and it’s good when they do, because you’ve discovered a problem before you’ve signed the final papers.
I’ll dive deeper into this below, but briefly: you’re reviewing financial records, customer contracts, employee agreements, intellectual property, litigation history, tax compliance, and regulatory standing. You’re also doing operational diligence—walking the facility, meeting key customers, understanding how the business actually works day-to-day.
Expect this phase to take 4-8 weeks.
4. Choosing Your Purchase Structure: Asset vs. Share Purchase
This is one of the most important legal decisions you’ll make, and it affects your liability, tax position, and transition costs.
Asset Purchase: You’re buying specific assets (inventory, equipment, customer contracts, IP) and leaving behind the old corporate shell. This gives you a fresh start—no hidden liabilities surprise you post-closing. However, you’ll likely need to transition customer contracts, renegotiate supplier agreements, and you’ll have higher transaction costs. Also, the seller faces higher tax consequences because asset sales trigger capital gains on the business.
Share Purchase: You’re buying the entire legal entity (the company itself), so all contracts, relationships, and liabilities transfer intact. Customers don’t need to re-sign anything. The transition is simpler. However, you inherit everything—known and unknown. Your liability exposure is higher unless you negotiate strong representations and warranties and get indemnification coverage.
In Ontario, most small-to-mid-market acquisitions are structured as asset purchases because the buyer’s risk is lower. But it depends on the deal. Your lawyer and accountant should model both structures to see which makes sense tax-wise and operationally.
5. Drafting and Negotiating the Purchase Agreement
Now comes the detailed agreement. This is where all the terms go—what you’re buying, what you’re paying, what representations and warranties the seller is making, what happens if something is wrong after closing, and how disputes get resolved.
Key sections include: Representations and Warranties (the seller’s promises about the business), Indemnification (the seller’s obligation to compensate you if representations are false), Conditions Precedent (what needs to happen before closing), Covenants (obligations both parties have between signing and closing), and Closing Mechanics (how and when money changes hands).
This is where most litigation happens—disputes over what was promised and what was true. Having a lawyer draft a tight agreement saves money in the long run.
6. Closing the Deal
Assuming due diligence went well and all conditions are satisfied, you move to closing. This typically happens on a single day or over a few days.
At closing, you’ll sign a stack of documents, wire the purchase price (or arrange financing), get the keys/access/logins, and take legal ownership. The seller signs the bill of sale, transfers IP, signs non-competes and non-solicits, and releases claims against the business.
Have your lawyer coordinate closing. There’s a lot that can go wrong—missing signatures, funds sent to the wrong account, assets not properly transferred. A closing attorney ensures all the details line up.
Due Diligence: What You Need to Look At When Buying a Business in Ontario
Financial Due Diligence
Pull the last 3-5 years of tax returns, financial statements, and bank records. Are the numbers consistent? Is revenue trending up or down? Are there large one-time expenses that inflate costs?
Watch for red flags: revenue concentrated in a few customers, margins that are declining, unexplained expenses, large related-party transactions, or cash that doesn’t match tax filings.
Contracts and Customer Due Diligence
Pull every material contract: customer agreements, vendor agreements, supplier contracts, leases, employment agreements. Read them carefully.
Are there any termination clauses triggered by a change of ownership? Many customer contracts have “change of control” provisions that let customers walk away if ownership changes. Also identify customer concentration. If 50% of revenue comes from two customers, that’s a concentration risk.
Employee and HR Due Diligence
Pull employment agreements, payroll records, and any claims or complaints. Are employees properly classified as employees vs. contractors? Have there been any wage/hour issues? If key employees have golden handcuff provisions or non-competes, understand them. Will they stay post-acquisition?
Intellectual Property
Who owns the trademarks, patents, software, and domain names? Are they properly registered? Are there any disputed claims?
Litigation and Regulatory
Ask the seller about pending or threatened lawsuits. Check court records for civil or regulatory actions. Look for any outstanding compliance issues—environmental violations, labour disputes, regulatory citations.
Tax Compliance
Has the business filed all tax returns? Are there any outstanding tax assessments or disputes with CRA? Are there any GST/HST issues? A business with unpaid payroll taxes or GST can seem cheap until you realize those liabilities transfer with the business.
Common Pitfalls: How to Avoid Them When Buying a Business in Ontario
1. Skipping the Lawyer Until You’ve “Done Your Own Due Diligence.” I hear this a lot. Then, six months later, you discover the seller didn’t disclose a customer contract with a termination clause, and your revenue just dropped 30%. Get a lawyer involved early.
2. Focusing Only on Price. Entrepreneurs often get fixated on paying the lowest price possible. But price is only one variable. The structure of the deal matters. The indemnification protection matters. I once negotiated a deal where strong indemnification and a longer holdback period saved my client from issues that surfaced post-closing.
3. Assuming Contracts Will Transition Automatically. They won’t. Customer contracts, vendor agreements, and leases almost always require written consent or formal assignment. You need to identify which contracts require consent and get written approval before closing.
4. Not Understanding the Tax Structure Implications. Asset vs. share purchase has huge tax consequences. So does how you finance the acquisition. Your accountant should model the tax impact before you sign the purchase agreement.
5. Neglecting Seller Financing Terms. Many acquisitions include seller financing. What’s the interest rate? What are the repayment terms? What happens if the business underperforms? Get clear terms in writing.
Legal Costs and Timeline: What to Budget
Let me give you realistic numbers.
Legal costs for a small acquisition (under $500K business): $5,000–$15,000. This covers the LOI, purchase agreement drafting, due diligence support, and closing.
Legal costs for a mid-market acquisition ($500K–$5M business): $15,000–$50,000. You’re spending more time on due diligence, more complex negotiations, and more sophisticated deal structures.
These costs seem high, but consider the context. If you’re buying a $1M business and skip legal, and then discover a $100K liability you should have caught in due diligence, that’s a 10x cost overrun. Legal fees are insurance.
Timeline: From signed LOI to closing typically takes 8–16 weeks. Due diligence is 4–8 weeks. Purchase agreement negotiation is 2–4 weeks. Condition satisfaction and closing logistics are 2–4 weeks.
FAQ: Buying a Business in Ontario
Q: Do I need a lawyer if the seller is a friend and we trust each other?
A: Yes. Trust is great—it’s why you’re doing the deal—but this agreement will outline what happens if things go wrong. A lawyer protects both of you by making expectations clear.
Q: Can I use the seller’s lawyer to draft the purchase agreement?
A: No. The seller’s lawyer represents the seller’s interests, not yours. You need your own counsel.
Q: What if the seller won’t agree to representations and warranties?
A: That’s a huge red flag. If the seller won’t promise basic things, they’re signaling they don’t stand behind what they’ve told you. Either dig deeper or walk away.
Q: Should I pay cash or finance the acquisition?
A: It depends. Cash gives you leverage in negotiations and simplifies closing. Financing spreads cost over time. Often the best approach is a combination: some cash down and seller financing for a portion.
Q: How do I handle employees post-acquisition?
A: In an asset purchase, employees typically aren’t transferred—they’re terminated and you hire new ones. In a share purchase, all employees transfer automatically. You need to confirm key employees will stay.
Q: Can the deal fall apart after we’ve signed the purchase agreement?
A: Yes, if conditions aren’t satisfied. Typical conditions include financing approval, major customer consent, regulatory approval, or no material adverse change to the business.
Q: What’s a purchase price adjustment?
A: The business likely has net working capital. You’ll typically agree to adjust the purchase price based on the actual working capital at closing.
Q: How much due diligence is enough?
A: Enough to understand the business, identify all material risks, and feel confident about your decision. For a small business, 6 weeks. For a larger one, 12+ weeks.
Next Steps: Getting Started
Buying a business is a significant decision, and getting the legal structure right is critical. The cost of doing it properly now is a fraction of the cost of fixing it later.
If you’re thinking about how to buy a business in Ontario and you want to talk through your specific situation, I’d be happy to help. At Onley Law, I work with entrepreneurs and growing businesses on acquisitions, structuring, and all the legal pieces that make deals work.
Schedule a free consultation to discuss your acquisition and get clarity on the legal side of buying a business in Ontario.