How to pick an M&A banker: the four types, the fee math, and the five questions that separate good from glossy
Two owners with similar businesses sell in the same year. One nets $14 million. One nets $19 million. They were the same business. The biggest single variable was which M&A advisor ran the process. The right banker is not a lottery ticket. The right banker is a category match between the size of the business, the type of buyer the business will attract, and the firm whose practice is built around exactly that type of deal.
Most owners interview only one or two bankers before they sign. Many sign with whichever banker their accountant or attorney recommended. Both habits are expensive. The banker pitch meeting is the cheapest, highest-leverage hour in the entire transaction. This article tells you who to invite to that meeting, how to compare them, and what to listen for once they start talking.
The four banker types
M&A advisors come in four broad categories. They sound similar from the outside. They are very different on the inside. Picking the wrong category is one of the most common owner mistakes.
A common owner mistake is hiring a business broker for a $20M EBITDA business because the broker is friendly and the fee is "only" a flat percentage. A $20M EBITDA business may attract 40 strategic buyers and 25 sponsor groups. A broker is not built to manage that complexity. The result is one offer instead of a competitive process, and the headline number reflects the missed competition.
The mirror-image mistake is hiring a bulge bracket bank for a $40M deal. The deal goes into the queue behind eight $500M projects. Senior bankers attend the kickoff and the closing dinner. Everything in between gets handled by junior staff who lack the relationships to make the buyer list sing.
How M&A bankers get paid
The fee structure shapes banker behavior across the entire process. Owners who do not understand the fee math sometimes get surprised by the size of the check that comes out of the wire at closing.
Most M&A engagement letters in the middle market combine four components.
Typical $30M sale, regional boutique banker
The Lehman formula was the historical default for success fees: 5 percent of the first million, 4 of the second, 3 of the third, 2 of the fourth, 1 percent of everything above. Modified Lehman scales the bands differently. Today, in the lower middle market, success fees commonly run 1 to 2 percent of deal value on deals between $20M and $100M, with minimums between $500K and $1.5M that floor the banker's economics on smaller deals.
Two clauses to negotiate carefully in the engagement letter. The tail clause defines what happens if you fire the banker and later sell to a buyer they introduced. The tail period is often 18 to 24 months. Negotiate to a buyer list that has to be explicitly delivered in writing at termination, not "anyone the banker ever mentioned." The definition of deal consideration drives the success fee. Earn-outs, rollover equity, and assumed debt may or may not count. The owner-favorable language excludes contingent consideration from the success fee base, or pays the success fee on contingent consideration only as it is actually received.
The pre-LOI vs post-LOI banker effect
Owners often think of the banker's job as introducing buyers. That is the visible part. The invisible part is what really moves the price.
Pre-LOI, a good banker manufactures competition. They run a structured process so that multiple buyers are bidding at the same point in time with the same information. They coach the management team on how to present. They prepare the confidential information memorandum so that the business looks like the strongest, cleanest version of itself. They control the timing so no one buyer can drag the process past competing offers. Competition is what moves headline value.
Post-LOI, a good banker manages the exclusivity period. They keep the buyer focused on closing rather than re-trading. They push back on diligence findings that try to chip the price. They quarterback the working capital peg, the escrow, the rep and warranty insurance negotiation. They protect the structure-stage value through the gauntlet of confirmatory diligence. Many owners do not realize how much value is at risk after the LOI is signed. A banker who fades after the LOI is a banker who lets the price erode.
When you interview bankers, ask explicitly: walk me through the post-LOI phase on your last three closed deals. Where did price slip, and what did you do to hold it? If the answer is generic, the banker's post-LOI muscle is weak.
Red flags in the pitch meeting
Walk away if you see any of these
- Aggressive valuation as the opening pitch. A banker who promises a 12x EBITDA outcome on a business that the market will likely price at 7x is buying your trust with a number they cannot deliver. Re-trades and disappointment follow.
- No reference deals in your size range or industry. Closed-deal sheets matter. Generic "we closed 200 deals" without examples that match your profile is not a track record for your transaction.
- No clear staffing commitment. If the pitch principal cannot tell you, by name, who will be running the deal day to day, that is the team you will not see.
- Refusal to share fee structure in writing before engagement. The fee should be on paper, the tail should be on paper, and the engagement letter should be reviewed by your attorney.
- Pressure to sign immediately. Good bankers know that owners often interview three or four firms. A banker who is pushing for a same-day signature is a banker worried they will not win the bake-off on merit.
- No retainer or absurdly low retainer. Counterintuitively, this is a flag. Real bankers want some retainer to compensate for the months of work pre-LOI. A banker who is willing to work entirely on contingency is often a banker who plans to push for an early, easy deal at the expense of price.
The five questions to ask in the pitch meeting
- What is the realistic value range for my business, and what assumptions drive the high end versus the low end? A good answer breaks the multiple into the underlying drivers (growth, margins, customer concentration, recurring revenue). A weak answer is one number.
- Who is the closer team on this deal, and what percentage of the principal's time will my deal get? Ask for the names. Ask how many other deals the principal will be running at the same time. If the answer is more than three live deals at once, your project will compete for attention.
- What buyers will be on the list, why, and what's your relationship with each? The buyer list is the entire game. A banker who can name the actual buyers (not just say "strategics and sponsors") and describe what each cares about is showing real preparation. A vague list is no list.
- Walk me through your last three closed deals in my size range. What was the spread between the highest and lowest IOI? What did you do to compress the bidding? This question separates bankers who run competitive processes from bankers who collect one offer and call it a process.
- If a buyer tries to re-trade after diligence, what is your move? The answer reveals the banker's post-LOI temperament. If the answer is mostly about explaining the buyer's view to the seller, the banker is going to fold. If the answer is a specific tactical playbook (counter-offers, walk-away credibility, alternative buyers on standby), the banker has a spine.
When to start the conversation
Most owners hire a banker 60 to 90 days before they want to launch the process. That is the engagement window. The first conversation with bankers should happen much earlier. Six to twelve months before you intend to go to market is the right window to be having introductory conversations. The reasons:
- You see the same banker twice and you can tell how their thesis on the market is evolving. That signal is information.
- The banker can point out value-creation moves you should be making in the 6 to 12 months before launch (customer concentration cleanup, contract renewals, KPI reporting). These moves often add multiples to the eventual outcome.
- By the time you are ready to engage, you know which two or three firms you genuinely want to pitch you. You run a real bake-off rather than a default.
Early conversations are free. Bankers expect them and welcome them, because their pipeline depends on cultivating relationships years before the close. The owner who waits until they have decided to sell to begin the conversation is the owner who picks from a thin list under time pressure.
The two-banker-finalist approach
The most useful structure for owners running a real bake-off is to take five to seven introductory meetings, narrow to two or three finalists, and put those finalists through a structured exercise: ask each to deliver a valuation analysis, a preliminary buyer list, and a process plan. Compare them side by side. The differences are often dramatic and they tell you which firm has actually prepared for your specific business versus which firm is recycling pitch decks.
Pay for the prep work if you have to. A few thousand dollars to two finalists, in exchange for genuine work product, is the best investment in the entire process.
Sources: M&A Source 2024 Market Pulse Report. International Business Brokers Association (IBBA) Market Pulse. Axial Forum middle-market deal data 2023 to 2025. SRS Acquiom Deal Terms Study (most recent edition). FINRA Conduct Rule 5141 on investment banking client communications. Sample engagement letter language drawn from publicly available materials from the Association for Corporate Growth. Industry fee benchmarks from Pitchbook Middle Market Report. Examples and commentary are the work of the Next Chapter Wealth editorial team and are general in nature. Banker selection for a specific transaction should involve interviews with multiple firms and review of engagement letters by qualified counsel.