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What Happens Between the LOI and Closing When Buying an Ontario Business

Signing an LOI to buy an Ontario business isn't the finish line. Here's the due diligence, drafting, and negotiation that fills the gap before closing.

Buying & Selling a Business5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • An LOI records the broad shape of a deal — price, structure, and key conditions — so both sides know they're aligned before investing serious time and cost in verifying everything.
  • Your lawyer, accountant, and any other advisors work through: - [ ] Corporate records and minute book - [ ] Financial statements - [ ] Material contracts - [ ] Leases - [ ] Employee…
  • While diligence wraps up, the parties' lawyers negotiate the definitive agreement — a Share Purchase Agreement or an Asset Purchase Agreement, depending on structure.

Signing a letter of intent feels like a milestone — and it is one. But for many first-time buyers, it also creates a false sense that the hard part is over. In reality, the LOI is closer to a starting gun than a finish line: most of the actual legal, financial, and practical work of an Ontario business purchase still lies ahead of you.

This is the stage buyers most often underestimate, both in how much work it involves and in how much can still change before closing. Here's what actually happens during it.

The LOI Is a Starting Line, Not a Finish Line

An LOI records the broad shape of a deal — price, structure, and key conditions — so both sides know they're aligned before investing serious time and cost in verifying everything. Most of its commercial terms are deliberately non-binding until a definitive purchase agreement is signed. That's precisely why so much still has to happen between signing the LOI and getting to closing: the details behind those broad terms haven't been tested yet.

Due Diligence: The Biggest Workstream

This is typically where most of the calendar time between LOI and closing actually goes. Your lawyer, accountant, and any other advisors work through:

Anything that raises a concern doesn't necessarily kill the deal — it usually gets addressed instead through a specific representation and warranty, an indemnity, a price adjustment, or a closing condition requiring it to be fixed before closing.

Drafting and Negotiating the Purchase Agreement

While diligence wraps up, the parties' lawyers negotiate the definitive agreement — a Share Purchase Agreement or an Asset Purchase Agreement, depending on structure. These are materially different documents: a share deal's agreement has to manage liabilities the corporation already carries, while an asset deal's agreement has to spell out precisely which assets are included and which liabilities, if any, the buyer is assuming. Both typically include representations and warranties, covenants, indemnities, and a disclosure schedule qualifying what the seller has represented.

Clearing Closing Conditions

Even a fully negotiated purchase agreement usually can't close until a list of conditions is satisfied:

Each of these can involve a third party — a landlord, a lender, a licensing body — that neither the buyer nor seller fully controls.

Financing and the Purchase Price Adjustment

Many deals include a financing condition that has to be satisfied before closing, and it's common for the purchase price itself to be adjusted after closing through a working-capital adjustment — comparing an estimated closing statement to a final post-closing one. Where the buyer wants extra protection against undisclosed liabilities, a holdback or escrow is a common tool: a portion of the purchase price is withheld or placed with a third party for a defined period to secure the buyer's indemnity claims.

What Can Cause This Stage to Stall

Frequently asked questions

Is the LOI binding once we've signed it?

Generally, the commercial terms — price, structure, proposed timeline — are not. A short list of specific clauses, like confidentiality and exclusivity, is typically drafted to bind the parties immediately regardless of what happens with the rest of the deal.

What happens if due diligence turns up a serious problem?

It depends on what's found. Some issues get addressed through a specific indemnity or a price adjustment; others may require the seller to fix the problem before closing, or may lead the buyer to walk away if the LOI's conditions allow it.

Who is responsible for arranging financing during this stage?

The buyer is, and financing is typically built into the purchase agreement as a closing condition — meaning the deal generally can't close until the buyer's financing is actually in place, unless the parties agree otherwise.

Can the deal still fall apart after the LOI is signed?

Yes. Because most LOI terms are non-binding, either side can generally walk away from the underlying deal if diligence or negotiation doesn't go as expected — though binding clauses like confidentiality and exclusivity still apply even if the transaction itself doesn't close.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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