Khaled Azar 
“Why do you charge a retainer? Can you just work on commission?”
I hear this on almost every introductory call. It is a fair question. You are about to trust someone with the biggest financial event of your life, and before anything happens, they want money upfront. I get why that feels wrong.
But after 18 years of advising founders through exits, I can tell you this: the retainer is not about us. It is about you. And the advisors who do not charge one should make you more nervous than the ones who do.
Let me explain.
The Real Work Starts Before Any Buyer Sees Your Business
Most sellers underestimate what happens in the first 60 days.
Before a single buyer gets a phone call, your advisor has already put in hundreds of hours. We build your Confidential Information Memorandum (CIM), a 30 to 50 page document that tells your company’s story in a way that drives competitive offers. We normalize your financials. We build a buyer list of 100 to 300 targeted prospects. We develop a pricing strategy based on comparable transactions.
This is not busywork. It is the foundation of your entire deal. A weak CIM means weak offers. A thin buyer list means no competition. And without competition, you leave money on the table.
According to the 2024-2025 Firmex M&A Fee Guide, the most common engagement fee range for lower middle market advisors is $5,000 to $25,000, with 38% of firms now charging above $26,000 for larger or more complex engagements. That fee covers real costs: financial analysis, legal coordination, marketing materials, buyer outreach technology, and the opportunity cost of an experienced team dedicating months to your deal.
Most lower middle market M&A advisors charge an upfront engagement fee in this range, plus a success fee of 3-6% at closing (Firmex/Axial M&A Fee Guide, 2024-2025).
A Retainer Filters for Serious Sellers
Here is something most advisors will not say publicly. About half of the business owners who contact us are not actually ready to sell. They are curious. They want a valuation number to tuck away. They want to test the waters. And that is fine. But an advisor who takes every one of those engagements on pure commission has a problem: they are burning resources on people who will never close.
The retainer is a commitment filter. When you pay it, you are telling us and yourself that you are serious about this process. In our experience, sellers who commit upfront respond faster to buyer requests, prepare better for due diligence, and close at higher valuations. They treat the process like the high-stakes event it is.
I have taken on no-retainer clients early in my career. The pattern was consistent: slower responses, missed deadlines, deals that stalled because the seller was not fully committed. We stopped doing it because it hurt both sides.
The retainer protects your deal outcome. Committed sellers close faster and at better terms.
The Incentive Problem With “No Retainer” Advisors
Free upfront sounds good until you realize how they get paid.
Think about it from the advisor’s side. If they have done six months of work with zero compensation, they need the deal to close. Any deal. At any price. That creates a dangerous incentive: they may push you to accept a lower offer just to collect their success fee.
I have seen this happen. An owner came to us after walking away from another advisor who spent eight months “working the deal” on pure commission. When a buyer offered 3.5x EBITDA, the advisor pressured the seller to take it. “This might be the best you get.” We took the engagement with a retainer, rebuilt the CIM, ran a proper process, and closed at 5.2x EBITDA with a strategic buyer six months later.
The retainer aligns incentives. When we have already been compensated for the upfront work, our only motivation during negotiations is to maximize your outcome. We can walk away from a bad offer because our lights are still on.
Nobody Can Guarantee a Sale
Markets shift. Buyers change strategies. Interest rates move. A business that would have sold for 8x ARR in 2021 might trade at 5x in a tighter market. No honest advisor can guarantee a closed transaction because too many variables sit outside anyone’s control.
Advisors who guarantee a sale are either lying or planning to pressure you into a bad deal when the time comes. The ethical position, and the one that protects you, is transparency: we will run the best possible process, build maximum competitive tension among buyers, and negotiate hard. But the market has the final say.
That said, the retainer is not a blank check. At Livmo, our retainers are modest relative to the deal value, and the vast majority of our compensation comes from the success fee at closing. We are motivated to close. We just are not desperate to.
Run from guarantees. The right advisor is honest about uncertainty and compensated to fight for your best outcome.
What You Should Ask Before Signing
Not all retainers are created equal. Some advisors charge monthly retainers that bleed you for a year. Others charge a one-time engagement fee that covers specific deliverables. Here is what to ask:
- What does the retainer cover? You should get a clear list: valuation analysis, CIM creation, buyer list development, and initial outreach. If they cannot itemize it, walk away.
- Is the retainer credited against the success fee? Many reputable advisors, including Livmo, credit the retainer toward the final success fee. You are not paying twice.
- What is the success fee structure? The Lehman formula (declining percentage as deal size increases) is used by 44% of middle market firms. The accelerator formula (increasing percentage for higher values) is gaining traction at 20% adoption. Know which model your advisor uses.
- What happens if the deal does not close? Understand the terms. A reasonable retainer covers work performed. It should not be so large that the advisor has no incentive to close.
Use Livmo’s Sellability Checklist to evaluate whether your business is ready for market before you engage any advisor. The more prepared you are, the more efficiently the retainer dollars get spent.
Frequently Asked Questions
How much do M&A advisors typically charge as a retainer?
Most lower middle market M&A advisors charge an engagement fee between $5,000 and $25,000, though 38% of firms now charge above $26,000 for larger transactions. This typically covers valuation analysis, CIM preparation, and initial buyer outreach. The retainer is often credited against the success fee at closing.
Should I avoid advisors who charge a retainer?
No. A retainer is actually a positive signal. It means the advisor is selective about clients and has enough deal flow to be choosy. Advisors who work on pure commission may lack the resources to run a proper process or may pressure you into accepting a lower offer to collect their fee.
What is a typical M&A success fee?
Success fees in the lower middle market typically range from 3% to 6% of the total transaction value, declining as deal size increases. The most common structure is the Lehman formula, used by 44% of middle market advisory firms according to the 2024-2025 Firmex M&A Fee Guide.
Can an M&A advisor guarantee they will sell my business?
No reputable advisor guarantees a sale. Market conditions, buyer appetite, and deal-specific factors create variables outside anyone’s control. An advisor who guarantees a sale is either being dishonest or planning to push you into an unfavorable deal. Look for transparency about process and track record instead.
Next Steps
Want to understand what your business is worth before engaging an advisor? We will evaluate your metrics, benchmark against comparable transactions, and give you a clear picture of where you stand.