Do I Need a Lawyer to Sell My Business in Canada?

Usually not required by a general law, but several specific triggers make a lawyer mandatory or effectively unavoidable. No statute in the CBCA, the Ontario Business Corporations Act, or the Alberta Business Corporations Act says an owner must retain a lawyer simply to sell a business. What the law actually regulates are specific steps inside a sale: authorizing an extraordinary asset sale, transferring real property, and, for larger or cross-border deals, federal filings. Whether you need a lawyer depends on which of these steps your sale involves.

The conditions that change the answer

1. You’re selling all or substantially all of the business’s assets

If a corporation sells all or substantially all of its property outside the ordinary course of business, shareholder approval is required, not left to management’s discretion alone. This rule appears in near-identical form in all three jurisdictions covered here:

• Federally, under the CBCA, such a sale “requires the approval of the shareholders.”
• In Ontario, the Business Corporations Act imposes the same authorization requirement at s. 184(3).
• In Alberta, the Business Corporations Act imposes the same requirement at s. 190.

This rule governs who must approve the deal, not who must draft the documents. But structuring a shareholder resolution correctly, and confirming the sale actually falls outside the “ordinary course of business” exception, is exactly the kind of judgment call that typically needs legal input.

2. Real property is part of what’s being sold

If the business sale includes land, a building, or a leasehold interest registered on title, Ontario’s electronic land registration rules require a solicitor’s certification statement confirming that the transferor’s and transferee’s solicitors “are not one and the same.” Even in the limited cases still using paper-format registration, a solicitor’s physical signature on the required statement is mandatory, not optional, according to Ontario’s land registration bulletin.

In Alberta, the Land Titles Act provides that where a corporate party is involved, a solicitor’s certificate confirming the corporation’s registered or incorporated status “shall be sufficient to satisfy the Registrar.” This embeds a lawyer’s certificate directly into how the registrar processes the transfer of a corporate-owned property.

In both provinces, a real-property component to the sale is the clearest single trigger for needing a lawyer, because the registration step itself calls for a solicitor’s signature or certificate.

3. The buyer is not Canadian

Federally, a non-Canadian buyer generally must submit either a Notification or an Application for Review under the Investment Canada Act, unless a specific exemption applies. This obligation is not limited to share purchases: acquiring all or substantially all of the assets used in carrying on a Canadian business counts as an acquisition of control under the Act, so asset-sale structures are caught too. This is a federal filing requirement that applies no matter which province the business operates in.

4. The deal is large enough to trigger competition review

If both thresholds are met, advance notification to the Competition Bureau is mandatory before closing. The Bureau itself states that parties to a merger that may require advance notification are “encouraged to seek legal advice.” Most small business sales fall well under these thresholds, but they matter for any sale involving a larger buyer or a business with substantial Canadian revenue.

5. Who is actually allowed to do the legal work

Even where no single rule forces a lawyer into the deal, the pool of people who may lawfully handle the legal side for a fee is narrow. In Ontario, only a person licensed by the Law Society of Ontario may practise law or provide legal services in the province. In Alberta, only a registered member of the Law Society of Alberta may practise law or call themselves a lawyer. This means that if an owner wants paid help with contracts, closing documents, or registrations beyond what they can do themselves, that help must come from a licensed lawyer in Ontario or Alberta, not an unlicensed consultant or advisor.

What this doesn’t tell you

None of these rules address the practical risks that sit outside the statute books: how a purchase agreement’s indemnity or representations-and-warranties clauses allocate risk after closing, whether an asset or share structure changes the tax result, or how broad a non-compete clause ends up being once negotiated. Those are deal-specific judgment calls the law does not regulate directly, and they sit alongside, not instead of, the statutory triggers above.