The M&A Process: A Step-by-Step Guide for Founders

For founders selling a business for the first time, the M&A process can feel opaque. Advisors reference stages and milestones, but the sequence, the decisions, and the leverage points are rarely explained clearly. This guide walks through the full process from preparation through close, with emphasis on what founders control and where the most consequential decisions occur.

The M&A process at a glance

Most lower-middle-market transactions move through eight to ten distinct stages from preparation to close. The stages are sequential but the work overlaps: legal negotiation begins before diligence ends, and positioning work that starts in preparation continues through the management presentation. Founders who understand the full sequence are better positioned to make decisions at each stage rather than reacting to them.

Stage 1 and 2: Preparation and go-to-market

Preparation is the highest-leverage phase of the process because it is the only one the seller fully controls. The work includes normalizing financial statements, documenting EBITDA addbacks, building the CIM, and establishing the buyer narrative. Sellers who enter market with credible materials move faster and hold more negotiating leverage than those who assemble materials reactively.

NDA execution follows outreach to a curated buyer list. In a well-run process, NDAs are signed with 30 to 60 counterparties in the first two to three weeks. The CIM is distributed only after NDA execution, and initial buyer interactions are managed tightly to avoid premature disclosure.

Stage 3 and 4: IOI and management presentations

Indications of interest are non-binding signals of buyer intent, including a preliminary valuation range, structure, and funding source. Sellers use IOIs to select a short list of buyers for management presentations, typically three to five.

Management presentations are the highest-stakes seller-controlled event in the process. They are the first time buyers meet the management team directly and evaluate both the business and the team. A well-prepared presentation reduces buyer uncertainty, compresses the time to LOI, and supports a stronger valuation outcome.

Stage 5 and 6: LOI and diligence

The letter of intent is the most important document a seller signs before the purchase agreement. It sets the price, structure, exclusivity period, and key terms that define the diligence period. Most LOI terms are difficult to improve after signing, and buyers use the exclusivity window to conduct the due diligence that often results in price adjustments.

Diligence runs in parallel tracks, including financial QoE, legal, commercial, and operational. The seller's role is to respond quickly, accurately, and completely. Management teams that respond to diligence requests within 48 hours and maintain full operational performance during the period are materially less likely to face retrade requests at close.

Stage 7: Close

Purchase agreement negotiation and closing run in parallel with the tail end of diligence. The purchase agreement captures all of the deal economics including reps and warranties, indemnification, working capital target, and any earnout provisions. Sellers who understand the economics of each provision, not just the purchase price, avoid closing-day surprises.