The 5 Mistakes Owners Make When Selling Their Business

In our experience advising business owners through numerous middle market transactions, the same mistakes appear with striking regularity. They are not the result of poor judgment or lack of intelligence. They are the result of navigating an unfamiliar process without the right preparation or the right guidance. This article names them directly — because awareness is the first step to avoiding them.

The most common mistake — and often the most expensive — is deciding to sell and immediately initiating a process without adequate preparation. The impulse is understandable. Once an owner has made the decision to sell, the instinct is to move quickly. But speed in the wrong direction is not an advantage.

Buyers — particularly private equity firms and sophisticated strategic acquirers — conduct thorough due diligence. When they encounter disorganized financial records, inconsistent EBITDA reporting, or undocumented customer relationships, they do one of three things: they lower their offer, they impose deal structure that shifts risk back to the seller (earnouts, extended escrows), or they walk away.

The businesses that achieve the best outcomes are those that have invested in preparation before going to market. At a minimum, that means three years of clean, well-organized financials, a normalized EBITDA schedule, documented customer and supplier relationships, an organized data room, and a capable management team. For owners who are twelve to twenty-four months from their intended exit, there is often meaningful work to be done in advance — addressing customer concentration, strengthening margins, reducing key-person dependency — that directly improves the final outcome.

One of the most consistent patterns we observe is the owner who receives an unsolicited approach from a buyer — a strategic competitor, a private equity firm, a larger industry player — and begins negotiating directly, without running a broader process. It feels efficient. It feels flattering. It often feels like it saves time. It almost always costs money.

The fundamental problem is leverage. In a one-on-one negotiation, the buyer knows there is no competition. They can take their time, conduct lengthy due diligence, use every finding to justify a lower price, and present deal terms that protect their interests at the expense of yours. The seller, who has already emotionally committed to the transaction and has invested months in the process, has diminishing leverage at every stage.

The alternative — a structured, competitive process run by an experienced advisor — fundamentally changes the dynamic. When buyers know that other qualified parties are evaluating the same business, they bring their best offers. They move more quickly. They are less likely to use due diligence findings as leverage for renegotiation. The difference in outcome between a competitive process and a single-buyer negotiation is regularly in the range of one to two turns of EBITDA — which, on a business generating $3M EBITDA at a 6x multiple, is $3 to $6 million.

If you receive an unsolicited approach, treat it as a signal that your business is attractive — not as the destination. The right response is to engage an advisor and run a proper process. The incoming buyer can still participate and may ultimately be the winning bidder. But they will compete for the privilege, and your outcome will reflect it.

---

The letter of intent (LOI) is one of the most psychologically powerful moments in a sale process. It is the first time a buyer puts a number on paper. For many owners, receiving an LOI feels like reaching a destination — the hard work is done, the deal is effectively done, all that remains is paperwork. This perception is both understandable and dangerous.

The LOI is not a deal. It is a starting point. Once signed, most LOIs include an exclusivity provision — typically thirty to sixty days during which the seller agrees not to speak to other buyers. The buyer uses this period to conduct due diligence, and it is during this period that renegotiation most often occurs. A buyer who encounters any issue — a customer that represents more revenue than disclosed, a normalization adjustment they dispute, an environmental issue, a key employee at risk of departure — will use it to revisit the price or the terms. At this point, the seller has no competitive leverage whatsoever.

There are two specific protections against this dynamic. The first is preparation — a thorough, well-organized data room and honest disclosure from the outset eliminates the information asymmetries that give buyers renegotiation leverage. The second is process — entering exclusivity from a position of competitive strength, with multiple parties having expressed strong interest, means that any attempt to renegotiate carries the real risk of the seller walking back to another bidder.

The owners who accept the first LOI they receive — sometimes because they like the buyer, sometimes because they are tired of the process, sometimes because they underestimate what a better process would yield — consistently leave money on the table. Not always dramatically, but consistently.

A sale process is demanding. It consumes significant management time and emotional energy, often while the owner is simultaneously trying to run the business. The risk — which materialises more often than sellers expect — is that the distraction of the sale process causes business performance to slip precisely when buyers are watching most closely.

From the moment a buyer receives your Confidential Information Memorandum to the moment they close the transaction, they are forming a continuous view of business momentum. Management meetings, site visits, and quarterly financial updates all feed into this view. A business that was growing consistently when the process began but shows a soft quarter mid-process creates anxiety. Buyers wonder whether the trend has reversed. They ask harder questions. They build more conservatism into their models. In some cases, they return with a revised — lower — offer.

The practical implication is that the months leading up to and during a sale process are precisely the wrong time to deprioritize business performance. Key customers need to be retained and nurtured. Revenue pipelines need to be managed. Staff retention deserves active attention — key employee departures during a sale process are among the most damaging events for deal value. The owner and management team need to run the business as though the sale is not happening — because in a meaningful sense, it still might not be.

The best advisors help owners manage this tension — handling the process administration, buyer communications, and due diligence coordination so that management bandwidth is preserved for the business. An advisor who requires the owner to be the primary point of contact for every buyer inquiry is contributing to the problem rather than solving it.

---

The decision about which advisor to engage — or whether to engage one at all — is the single most consequential choice most sellers make. Yet it is frequently treated as a secondary consideration, evaluated on the basis of fees or personal rapport rather than on the factors that actually determine outcome.

The owners who attempt to sell their businesses without professional representation consistently achieve lower valuations, face more onerous deal terms, and encounter more process friction than those who work with experienced advisors. This is not a subtle effect — the valuation differential alone is typically many times the advisory fee. The belief that "I know my business better than anyone" is true, and irrelevant. Knowing your business and knowing how to run a competitive M&A process are entirely different skills.

But the quality of advisor matters as much as the decision to engage one. The lower middle market is crowded with advisory firms that win mandates by promising aggressive valuations and senior attention, then hand the actual work to junior staff once the engagement is signed. The result is a process run by analysts who do not know the buyers, cannot open the right doors, and lack the credibility to manage complex negotiations. The seller ends up frustrated, the process drags, and the outcome suffers.

The characteristics of a genuinely effective lower middle market advisor are specific:

• Senior-led execution. The partner who pitches the engagement should be the partner running it — present in management meetings, leading buyer negotiations, and available to the client directly throughout the process.
• Real buyer relationships. An advisor's value in market access comes from relationships, not databases.
• Sector relevance. Your advisor of choice understands what buyers in that sector value, which firms are active, and what deal structures are typical. Generic advisors who claim expertise across all sectors typically have deep expertise in none.
• Process discipline. The advisor should have a clear, structured process methodology — a defined timeline, staged buyer engagement, and a system for generating and managing competitive tension through to close.

A Final Note: These Mistakes Are Avoidable

Every one of the mistakes described above is predictable, and every one of them is avoidable with the right preparation and the right guidance. They are not the result of unusual circumstances or bad luck — they are the result of navigating a complex, high-stakes process without sufficient knowledge or support.

The irony is that the cost of avoiding these mistakes — investing in preparation, engaging an experienced advisor, running a structured process — is modest relative to the value at stake. The advisory fee on a $20M transaction is a small fraction of the difference between a well-run process and a poorly-run one. The preparation work that prevents due diligence surprises costs time and effort, not money. The discipline to resist the first LOI requires nothing more than the right frame of mind.

What it requires, ultimately, is the willingness to treat the sale of your business with the same professionalism and rigor that you have applied to building it. The owners who do that consistently achieve the outcomes their businesses deserve.