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Due Diligence

How Due Diligence Can Kill a Commercial Sale

Reviewed & updated July 2026 · By Jason Bitton, RE/MAX Commercial, Libertyville, IL

Most deals don't fall apart over the big number. They fall apart over the small, random snags nobody planned for. Here's what kills deals at the finish line — and how to push through.

The contract is signed, the price is agreed, everyone's happy. Then due diligence starts — and that's where deals quietly die.

It's rarely one big problem. It's something random. Financing hits a snag. Two attorneys start fighting over small language. An easement nobody read carefully becomes a two-week argument. The deal was never really about the headline number; it's about whether someone clears the dozen small obstacles that show up after the contract.

A real example: two weeks of fighting, solved in thirty minutes

On one deal, two attorneys deadlocked over whether the village considered a use conforming. One wanted a letter from the village confirming it; the other argued the occupancy permit was already enough. FOIA requests went out, two weeks of back-and-forth burned, and we were staring down a missed closing.

So I drove to the village hall in person and walked out with a letter confirming the conforming use. Two weeks of attorney argument, resolved in about thirty minutes — because some things move faster in person than in writing. That's the whole job during due diligence: push through each roadblock and refuse to let any single one stall the entire transaction.

The quieter deal-killer: drift

The other thing that kills deals isn't a problem at all — it's momentum loss. If nobody's tracking the dates, the deal just languishes. People don't know the next step, the next step doesn't happen, and a live deal slowly goes cold.

I don't rely on the buyer's agent to drive it. I set the expectations and the timeline, I check in, and I make sure everyone's on track. Most of the time the buyer's agent appreciates it — they want the deal closed too, so keeping everyone moving helps both sides get paid.

What to expect in due diligence

Due diligence isn't where good deals go to die. It's where good deals get managed. The difference is whether someone's actively clearing the path — or waiting and hoping it clears itself.

Frequently asked

What is the riskiest stage of a commercial transaction?
Due diligence. Price is usually settled by then; deals fail over financing, title, easements, zoning confirmation, environmental issues, and simple loss of momentum.
Can a deal be saved once it stalls in due diligence?
Often, yes — if someone gets in front of the specific problem fast. Many deals that feel dead are one phone call, one document, or one in-person visit away from moving again.
Who keeps a commercial deal on schedule?
It shouldn't be left to chance or to the other side's agent. The listing broker setting clear timelines, tracking the dates, and checking in is what keeps both parties moving toward closing.
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RE/MAX Commercial · 1344 S Milwaukee Ave, Libertyville, IL 60048
Jason Bitton, RE/MAX Commercial
About the Author

Jason Bitton is a commercial real estate broker with RE/MAX Commercial in Libertyville, IL — #1 RE/MAX Commercial Broker in Illinois (2022, 2024, 2025) — serving Lake County, the North Shore, the O’Hare corridor, and the Chicago suburbs. More about Jason →

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