Most searchers and ETA operators move in a straight line from identifying a target to signing an LOI to running confirmatory diligence. The cost of that arc is real: four to six months, $20k to $50k in advisory spend, and deep legal commitment before you know if the business is actually buyable. What gets missed is a bounded commercial check that happens before the LOI, when walking away is still free.
A killer question for this moment is simple: would the business still work if you removed one thing? Remove the top two customers. Remove the founder’s relationships. Drop the margin by 15% from standard discounting pressure. If the deal dies at any of those checks, you’ve saved months of diligence and six figures in cost.
The commercial story doesn’t survive basic questions
If a manufacturer claims 70% gross margin but that margin depends entirely on two buyers representing 60% of revenue, you have a problem that no amount of diligence fixes. I’ve seen a searcher spend 90 days in confirmatory diligence learning that customer concentration made the deal impossible. Three hours of customer calls would have surfaced it.
A kill-check: Call the top five customers. Ask what they paid for similar services last year. Ask what they’d pay if they had three vendors to choose from instead of one. Ask if they’ve ever pushed back on pricing or if the relationship lets them demand discounts. If the margin story has to hide behind opacity or relationship inertia, you don’t have a pricing problem. You have a valuation problem that kills the economics before you even close.
Seller dependency is a commercial tell, not a legal one
This one shows up differently: 40% of revenue is renewal-based, and the founder’s personal relationships are the renewal engine. Walk that founder away at close, and the business follows. That’s not a financing-condition problem or an earn-out clawback. Those are legal levers. It’s a commercial reality you can’t finance your way out of.
The question is mechanical: Does the business move independent of the seller, or does it move with them? If customer relationships are personality-driven and the founder owns all the technical knowledge and deal momentum, the value you’re buying is portable. It goes home with the seller. That integration work starts in LOI drafting, not post-close. You can’t discover it in diligence and fix it with a better contract.
Ask the customers directly: What would change if the founder left tomorrow? If the answer is “a lot,” you’ve found your real risk. Integration planning becomes the primary deal thesis, not a secondary work stream.
Pricing fragility is where the model breaks
A manufacturer with a defensible pricing story answers one question: what would the buyer pay if they had three options, not one? If the answer is “it collapses,” then the pricing is fragile. A large customer pays a 15% premium because of ten years of integration depth, not because the product is stronger. Remove the incumbency, and margin vanishes.
That’s not a margin question. That’s a commercial thesis question. You can’t improve your way out of it post-close because the margin doesn’t actually exist without the moat. Confirmatory diligence won’t change that. It will just confirm it slowly.
The kill-check is: Can you re-price this customer at market rate without losing them? If not, the premium was an illusion. If yes, you’ve found your real defensibility. That’s a signal before you commit to expensive technical and legal work.
What This Is Not
A kill-check is not full commercial due diligence, not legal work, and not financial modeling. It does not replace a QoE, a market study, or integration planning. It answers one question: Does the commercial story hold up enough to justify the cost of confirmatory diligence?
The rough edges
This approach works best when the business has visible customer relationships and clear pricing. If the target is a legacy manufacturer with opaque contracts and relationships built over decades, the signals are hazier. You will have less clarity, not more. The kill-check doesn’t make the problem invisible. It just tells you how much uncertainty you’re really buying into.
Run the check before you commit. If the commercial story holds up under basic pressure, the rest of diligence becomes validation, not discovery. A Signal Check surfaces these questions in hours, not weeks. Request one for your target.
