The headline banker fee is visible. The cost of having no independent counsel is not — but it shows up in retraded prices, missed leverage points, and management capacity that gets consumed by process work.
The Visible Fee Versus the Real Cost
Banker fees are quoted clearly. A 1% success fee on a €200m transaction is €2m. The number is on the engagement letter. CEOs and CFOs reflexively measure 'cost of advisory' against this number.
But this is the wrong number to optimise. The cost of advisory in an M&A process is not what you pay the bankers. It is what you don't capture in price, what you concede in terms, what you spend in management bandwidth, and what you live with post-close. Those costs typically dwarf the headline fee.
Five Places the Hidden Cost Shows Up
First: retrade. Bidders learn things in confirmatory diligence and use them to push price down. A 5% retrade on a €200m deal is €10m — five times the banker fee. An independent counsel structurally focused on diligence-grade preparation reduces retrade risk.
Second: term sheet drift. The economic value of an M&A deal is not just the price. Locked-box vs. completion accounts, working-capital target methodology, escrow size, indemnity caps, MAC definitions — each can move actual deal value by single-digit percentages. Bankers handle these competently; an independent counsel pressure-tests them.
Third: process tempo. Auctions that drag give bidders time to find reasons to lower price. Auctions that move fast — but cleanly — produce better outcomes. Process tempo is set by who owns the workstream coordination; this is rarely the banker's strongest dimension.
Fourth: management capacity. The CEO who spends 40% of their time on transaction process for six months is a CEO who is not running the business. The cost of business performance during a transaction process is invisible but very real. Independent counsel materially reduces it.
Fifth: post-close regret. The deal that closes but doesn't deliver — wrong buyer, wrong terms, wrong synergies — is the most expensive outcome of all. Most post-close regret traces to decisions made under banker-only advisory pressure during the auction.
What the Math Looks Like
Take a €200m M&A transaction. Banker fees: ~€2m. Independent counsel fees: typically €150–500k for a full process engagement. Adding independent counsel raises advisory cost by 7–25%.
The expected gain: 1–3% on retrade prevention (€2–6m), 1–2% on term sheet optimisation (€2–4m), incremental but unmeasurable gains in management capacity and post-close fit. The downside math doesn't really work — even being conservative, the independent counsel typically pays for itself by a multiple.
The reason this isn't standard practice is not economics. It is procurement: 'we already have advisors'. That framing misunderstands the role. Independent counsel is not another advisor. It is the second voice without which the advisory stack is structurally one-sided.