Most business sales that fall apart do not do so dramatically. There is no single revelation that sends the buyer running. Instead, deals die quietly — as financial inconsistencies accumulate, explanations grow complicated, and buyer confidence erodes to the point where the deal no longer makes sense at the agreed price.

Due diligence exists precisely to surface these problems. Buyers use it to verify that what the seller represented is actually true — and to find the things the seller did not think to mention. For sellers, understanding what buyers look for, and preparing for it well in advance, is one of the highest-value activities a business owner can undertake.

"By the time a buyer flags a problem in diligence, it's already too late to fix it cleanly. Sellers who prepare 12 to 24 months before a transaction almost always get better outcomes — in price, structure, and speed to close."

LJ Govoni — Principal Consultant, Split Oak Advisory Group

1. Revenue Concentration

If more than 20 to 25 percent of your revenue comes from a single customer, expect the buyer to treat it as a structural risk — because it is one. The question they are asking is: what happens to this business if that customer leaves? In manufacturing or distribution, where a major retail account can represent the majority of a brand's volume, this concern is not theoretical.

The fix is not to fire your largest customer. It is to demonstrate that you are actively building a more diversified base, that the large customer has a contractual relationship with renewal terms, and that the business has the operational infrastructure to grow into the pipeline you have built.

2. Inconsistent or Unexplained Financial Trends

Buyers will build a detailed financial model from three to five years of your historical statements. If your gross margins have declined 300 basis points over two years, they will want to know why. If your EBITDA jumped significantly in the most recent year, they will want to verify that the improvement is structural and not the result of one-time factors or aggressive accounting choices.

Trends that cannot be explained clearly create doubt. And in an M&A process, doubt is expensive. It shows up in price adjustments, earn-out provisions, and indemnification escrows.

3. Owner Dependency and Informal Compensation

Family businesses and founder-led companies often have compensation structures and expense arrangements that reflect the owner's personal preferences rather than arm's-length business decisions. This is not inherently a problem — buyers expect it — but it must be disclosed clearly and the earnings impact must be quantified.

The challenge comes when the owner's compensation is difficult to separate from operating expenses, when personal expenses have been run through the business without documentation, or when key customer relationships exist entirely in the owner's Rolodex. Buyers price in the risk of owner dependency heavily.

4. Deferred Maintenance and Off-Balance-Sheet Obligations

In manufacturing and food production, the physical condition of equipment and facilities is a direct reflection of how well-run the business has been. Buyers will conduct operational due diligence alongside financial diligence, and they will find the roof that has needed replacement for three years and the packaging line that needs an overhaul.

These items translate directly into price adjustments. A buyer who discovers $500,000 in deferred capital expenditure during diligence will either reduce the purchase price accordingly or demand a credit at closing.

5. Working Capital Irregularities

Almost every M&A transaction involves a negotiation about working capital — specifically, what the normalized level is and whether the business will be delivered at closing with that amount in place. Sellers who do not understand this negotiation often leave meaningful value on the table or get surprised at closing.

Working capital irregularities — like a spike in receivables driven by factoring, or an unusually low inventory balance engineered to improve the balance sheet ahead of a sale — will be found and adjusted.

The Broader Principle

The common thread in all five of these issues is predictability. Buyers pay premium multiples for businesses that are predictable — where the revenue is recurring, the margins are stable, the management team is capable, and the financials tell a consistent, coherent story.

Sellers who invest in building that predictability before going to market — in the years before, not the weeks before — consistently achieve better outcomes: higher multiples, cleaner structures, shorter diligence processes, and fewer post-closing disputes.