Selecting the right M&A advisor is one of the most consequential decisions you'll make when selling your business. The right advisor can increase your sale price by 20-40%, find better-qualified buyers, and navigate complex negotiations on your behalf.
But not all advisors are created equal. The wrong fit can lead to a prolonged process, missed opportunities, and a final price that leaves money on the table.
Types of M&A Advisors
The M&A advisory landscape includes several distinct types of professionals:
- Investment bankers — Typically handle transactions above $5M. They run formal auction processes, prepare professional marketing materials, and have deep buyer networks. Most charge a retainer plus a success fee.
- Business brokers — Usually handle smaller transactions ($500K-$5M). They list businesses on marketplace platforms and work with a broader range of buyer types. Fees are typically a commission (8-12% of sale price).
- M&A boutiques — Specialized firms that focus on specific industries or deal sizes. They combine investment banking rigor with industry-specific expertise.
- Wealth advisors and CPAs — Some financial advisors offer transaction advisory as an additional service. They may lack deal execution experience but understand your financial situation deeply.
How Fee Structures Work
Understanding advisory fees is crucial for evaluating the true cost of selling your business:
The Lehman Formula
Many investment banks use a modified Lehman formula for success fees:
- 5% of the first $1 million of transaction value
- 4% of the second $1 million
- 3% of the third $1 million
- 2% of the fourth $1 million
- 1% of everything above $4 million
In practice, many advisors in the lower middle market charge a flat percentage — typically 3-6% of the total transaction value — with a minimum fee.
Retainers
Monthly retainers typically range from $5,000 to $25,000 depending on deal size. Some advisors credit the retainer against the success fee; others do not. Always clarify this before signing.
Success-Only Fees
Some brokers work on a pure success-fee basis with no retainer. While this seems attractive, it can mean the advisor is less committed to your deal since they have no guaranteed revenue from the engagement.
Questions to Ask Before Hiring an Advisor
- How many transactions have you closed in my industry? Industry expertise matters. An advisor who understands your market can position the business more effectively and identify the right buyers.
- What is your typical deal size? An advisor who usually handles $100M transactions may not give your $5M deal the attention it deserves. Look for alignment.
- How will you market my business? Ask about their buyer outreach process, how they maintain confidentiality, and what marketing materials they prepare.
- What tools and technology do you use? Modern advisors leverage AI and data analytics for valuation, buyer targeting, and deal preparation. This translates to faster timelines and better outcomes.
- Can you provide references from recent clients? Talk to other business owners who have worked with the advisor. Ask specifically about communication, timeline, and whether the final deal matched expectations.
- What happens if the deal doesn't close? Understand the tail period (how long after the engagement ends can they claim a fee) and any break-up provisions.
Red Flags When Evaluating Advisors
- Overvaluing your business to win the engagement. Some advisors inflate valuations to get you to sign. If one advisor's estimate is dramatically higher than others, be cautious.
- No clear marketing plan. If the advisor can't articulate exactly how they'll find buyers, they may rely on passive listing rather than proactive outreach.
- Unwillingness to share past deal data. Experienced advisors should be able to share anonymized statistics about their success rate, average time to close, and typical price-to-asking ratios.
- Pressure to sign quickly. A good advisor will give you time to evaluate the engagement terms and compare options.
Tools That Complement Advisory Services
Whether you work with an advisor or handle parts of the process yourself, the right tools can significantly improve outcomes. SellSideHQ's platform helps both business owners and their advisors with:
- Free Valuation Calculator — Understand your baseline value before engaging with advisors
- AI CIM Builder — Create professional deal marketing materials in minutes
- Buyer List Generator — Identify qualified strategic and financial buyers
- LOI Analysis — Evaluate offers from a seller-friendly perspective
Learn more about the M&A process in our guides on creating a CIM and evaluating Letters of Intent.