What can a founder realistically do alone?
A founder can competently run a single-buyer negotiation on a small transaction, particularly a relationship-driven sale to a known counterparty such as a longtime partner or a friendly competitor. Trust already exists, price expectations are anchored by an outside reference, and a deal lawyer can paper the agreement.
The founder brings real advantages to that table. Nobody knows the business, its customers, or its risks better, and on a simple deal that knowledge covers most of what the negotiation requires.
What does self-representation cost on a bigger deal?
The measurable cost is The Proprietary Discount, the 15 to 25 percent gap between what a serial acquirer pays an unrepresented founder in a bilateral negotiation and what the same business clears in a competitive process. On a $20M outcome, that gap is $3M to $5M.
The operational cost is diligence. A lower-middle-market sale commonly generates 200+ diligence requests, and a founder answering them while running the company risks the mid-process revenue dip that hands the buyer a retrade argument.
The structural cost is the missing walk-away. A solo founder negotiating with one buyer has no credible alternative, and the buyer knows it. Every deadline and every retrade is priced against that fact.
How lopsided is the experience gap?
The buyer’s corporate development team closes several deals a year; most founders sell one company in a lifetime. The buyer’s LOI language and diligence sequence have been refined across dozens of prior transactions against sellers who saw them once.
The asymmetry shows up in specifics: a 90 day exclusivity ask where 30 to 45 days is the recommended standard, a working capital peg set from the buyer’s math, earnout terms drafted by the buyer’s counsel, and an LOI silent on the points that matter most. Recognizing each of those requires having seen it before.
When is selling without a banker the right call?
Three cases. First, enterprise value below roughly $3M, where boutique minimum fees of $400k to $750k consume too much of the outcome. Second, a genuinely full offer, verified as full against comparable transactions rather than assumed. Third, an experienced repeat seller with a current buyer map and the time to run the process personally.
Each case carries a test. An offer that cannot be benchmarked is not known to be full, and a founder who has never sold has no basis for the repeat-seller exemption. Windsor Drake’s guide on whether you need a banker works through the decision in detail.
Is there a middle path between DIY and a full banker?
Yes. A founder can hire a deal lawyer plus a quality of earnings accountant without engaging a banker. QoE work runs $40k to $100k, and legal runs $75k to $150k on a $20M transaction. That team protects the founder from documentation traps and accounting disputes.
What the hybrid path cannot create is competition. Lawyers and accountants defend terms; they do not generate alternative bids, so the price remains whatever the single buyer chooses to defend. The Proprietary Discount survives the hybrid path intact. Full fee structures for all three paths are compared in the M&A advisor fee guide.
How much work is the sale process in hours?
Selling a company is a second full-time job for two or three quarters. The table below maps the major workstreams, with the full sequence documented in the sell-side process guide.
| Task in a sale | Hours and complexity | DIY feasibility |
|---|---|---|
| CIM and marketing materials | 60 to 100 hours; positioning determines which buyers engage and at what price | Possible; rarely done well on a first exit |
| Data room assembly | 80 to 150 hours across financial and legal records | Feasible with controller support |
| Buyer research and outreach | 100+ hours to build and work a list; Windsor Drake works a mapped universe of 150 to 300 potential acquirers | Low; a founder lacks the list and the cover of a process |
| Diligence management | 200+ requests to track, answer, and sequence | Feasible only if the company runs itself |
| Negotiation and structuring | Continuous across a 6 to 10 month process against a team that closes several deals a year | The stage where the experience gap costs the most |
What should I check before deciding?
Benchmark the offer before accepting the premise that it is full. A founder holding a live inbound offer can start with the offer received guides, which cover valuation checks and LOI terms before exclusivity locks the deal in.
Founders who want a competitive check on a live offer without restarting the sale can engage Windsor Drake through Approach Response, a 4 to 6 month process run alongside the existing negotiation.
Questions founders ask
What deal size justifies hiring a banker?
Above roughly $3M in enterprise value. Below that, boutique minimum fees of $400k to $750k consume too much of the outcome, and a deal lawyer plus a QoE accountant is usually the better structure.
How much does a sell-side advisor cost?
Windsor Drake charges monthly retainers of $5k to $15k below $50M enterprise value, plus success fees of 4 to 6 percent below $10M and 2 to 4 percent on $10M to $50M transactions.
Can a founder run a competitive process alone?
Rarely. A real process reaches 40 to 80 qualified buyers, requires 100+ hours of outreach on top of materials preparation, and depends on a buyer list most founders do not have.
What is The Proprietary Discount?
The Proprietary Discount is the gap between what a serial acquirer pays in an unbanked bilateral negotiation and what the same business clears in a competitive process, typically 15 to 25 percent of enterprise value.
Does a deal lawyer replace a banker?
No. A deal lawyer defends terms and documents; a banker creates competing bids. The lawyer protects the structure of the deal while the price stays wherever the single buyer set it.
How long does a self-run sale take?
A full process runs 6 to 10 months whether or not a banker is involved. The difference is who carries the workload; a self-represented founder carries it on top of running the company.
Last reviewed July 28, 2026 by Jeff Barrington, Founder and Managing Director, Windsor Drake. Content on this page may be cited with attribution and a link to https://windsordrake.com/advisory/negotiating-it-myself/