By Pascal Wittet, Partner at Orca Equity Partners
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Here’s a scenario you’ve probably lived through: You’re three months into a deal. You’ve spent £150k on due diligence and legal costs. Your lawyers are mid-way through drafting the SPA. The business looks good—not perfect, but good enough. Legal due diligence was a bit hairy, but nothing catastrophic.
Then your exclusivity period expires.
Suddenly, the seller’s advisor is on the phone with a friendly reminder that you’ll need an extension. “Of course, we’re happy to grant one,” they say. “But given where we are, perhaps we should revisit those warranty and indemnity caps we’ve been discussing…”
Welcome to the exclusivity trap.
The Three-Month Fantasy
Let’s talk about how exclusivity periods are supposed to work, and why they almost never do.
When you sign a Letter of Intent, you typically get an exclusivity period—let’s say three months. The theory is simple: six weeks for due diligence, six weeks for legal documentation. Plenty of time. Everyone shakes hands. You get to work.
Here’s what actually happens: The seller hasn’t done any vendor due diligence. Their financial records are a filing cabinet full of mystery. Customer contracts? “We’ll get those to you.” Employment agreements? “Pretty sure they’re in the basement.” Historic capex schedules? “What’s capex?”
Six weeks turns into ten weeks. Ten weeks turns into twelve. Your lawyers are still waiting for basic documents. The seller’s advisor keeps promising “everything by Friday” and delivering half of something by the following Tuesday.
And then—tick, tick, tick—your exclusivity expires.
Why This Is Expensive
At the point where your exclusivity period runs out, you’re typically heavily invested: You’ve spent £100-150k on DD and legal costs. You’ve found some issues, but nothing deal-breaking. You’re in too deep to back out. The seller knows it.
This is when sellers (or more accurately, their advisors) extract concessions. “We’ll extend exclusivity, but let’s agree those warranty caps need to be much lower.” Or: “Sure, another month, but we’re not indemnifying for any historical issues.”
The alternative—carrying on without exclusivity—leaves you exposed. The seller can entertain other approaches while you’re still burning through legal fees. You’re doing all the work while they’re keeping their options open.
Neither option is appealing.
The Solution: Auto-Extension Exclusivity
This is where a simple contractual mechanism can save you tens of thousands of pounds and considerable heartache.
The concept is straightforward: instead of a fixed exclusivity period that expires and requires renegotiation, you build in an automatic two-week rolling extension. The exclusivity period continues indefinitely unless the seller actively terminates it or the deal completes.
Here’s the clause in plain English:
“The initial exclusivity period expires on [date]. After that date, exclusivity automatically extends for rolling two-week periods unless the Seller gives written notice to the Buyer, by [time] on the last day of any two-week period, that they are terminating exclusivity.”
Why This Works
The magic of this clause is that it shifts the default position entirely.
Without auto-extension, you’re constantly asking for favours. With auto-extension, exclusivity continues unless the seller actively chooses to kill it.
Here’s what changes:
- No renegotiation tax: When the initial three months expires and you’re finalising the SPA, nobody needs to stop what they’re doing to extend exclusivity. The lawyers keep drafting. You keep working. No additional legal fees. No “favours” that require reciprocation.
- No window shopping: If a seller wants to entertain a speculative approach from another buyer, they have to formally terminate your exclusivity. And if you’ve paired this with an abort cost share clause (see my previous article), terminating exclusivity immediately kills your deal and triggers cost-sharing. Suddenly, that speculative approach isn’t free—it’s expensive.
- Control without confrontation: The seller retains the ability to terminate at any time. You haven’t trapped them. But terminating now carries real consequences, which means they’ll only do it if they’re genuinely done with your deal. No more games.
The result? Sellers who are serious about your deal stay engaged. Sellers who aren’t serious either don’t agree to the clause upfront, or they terminate and you find out early before you’ve wasted more time and money.
The Dos and Don’ts
DO:
- Introduce it at the right time: Like the abort cost share, bring this up after the main deal terms are agreed but before the LOI is signed. This is when you’re negotiating the mechanics, not the commercials.
- Make only three clauses binding in your LOI: Exclusivity, abort cost share (if you’re using one), and confidentiality. Everything else should be non-binding.
- Get it countersigned: Ensure both parties sign the LOI. Without the seller’s signature, you have an interesting conversation piece, not an enforceable agreement. The LOI should explicitly state which clauses are legally binding.
- Keep abort cost share and exclusivity completely separate: These are two different mechanisms serving different purposes. Never link them. Never write “abort cost share applies during the Exclusivity Period” or “if exclusivity terminates, cost-sharing ceases.” The moment you create conditionality between them, you’ve undermined both.
- Sell it properly: Frame it as efficiency for both parties: “If we’re at the final stages in three months, the last thing either of us wants is to distract lawyers and incur additional fees just to extend exclusivity. Control stays with you—you can terminate whenever you want—but we avoid unnecessary admin if things are progressing well.”
- Be clear about what exclusivity covers: No marketing the business. No entertaining unsolicited approaches. No sharing data room access with other parties.
DON’T:
- Don’t make the rolling period too long: Two weeks is the sweet spot. Monthly extensions give too much room for bad behaviour.
- Don’t forget to specify the mechanics: Who needs to notify whom? By what time? Via what method? Be explicit.
- Don’t skip legal review: Get your own legal advice. Every jurisdiction is different.
The Bigger Picture
Sellers who agree to auto-extension exclusivity are revealing something about their intent. They’re saying: “We’re serious about this deal. We’re not planning to shop you around.”
Sellers who push back hard? That’s information too. Maybe they’re not confident you’ll close, or maybe they’re keeping their options open.
Either way, you want to know that early.
The search fund journey involves enough genuine uncertainty without adding unnecessary negotiation risk on top. Tools like auto-extension exclusivity won’t eliminate deal stress, but they can remove one source of it entirely.
And at Orca, that’s what we’re after: giving searchers practical frameworks that make hard deals slightly less hard, and making the already-challenging journey toward acquisition marginally more enjoyable.
Now, if you’ll excuse me, I need to explain to my business partners why “auto-extension exclusivity” keeps autocorrecting to “auto-extinction exclusivity” on my phone. Though given how many of my deals die in due diligence, maybe my phone understands M&A better than I thought.


