The Sell-Side M&A Process: A Complete Timeline for Business Owners

Selling a business is not a transaction — it is a structured process. A well-run sell-side engagement typically takes six to nine months from launch to closing, with preparation beginning well before the market is engaged. Understanding the full arc helps owners make better decisions, stay ahead of buyer requests, and protect the business throughout.

Phase 1: Pre-Launch Preparation (8 to 12 weeks)

Preparation is the phase that most directly shapes outcomes. It is also the phase owners are most tempted to shortcut.

Financial Readiness

Reconcile financials through the trailing twelve months (TTM)
Complete a sell-side Quality of Earnings (QoE) analysis
Build a three-year forward financial model with defensible assumptions
Document EBITDA adjustments with supporting evidence

Strategic Positioning

Articulate the investment thesis: why this business, why now
Identify the three to five strongest strategic narratives (growth, geography, product, team, margin expansion)
Segment the likely buyer universe: strategic acquirers, financial sponsors, and family offices

Marketing Materials

Teaser — a one- or two-page anonymous overview
Confidential Information Memorandum (CIM) — typically 40 to 80 pages, fully branded
Management presentation — used later in the process for finalist buyers

Phase 2: Market Launch and Outreach (3 to 5 weeks)

Once materials are ready, the process goes to market — quietly and precisely.

Buyer list finalization — a curated, pre-qualified universe, typically 40 to 150 names depending on the engagement.
Outbound contact — the advisor reaches out with the teaser; no company identification is shared.
NDA execution — interested parties sign a non-disclosure agreement before receiving the CIM.
CIM distribution — the full story goes to qualified buyers under NDA.

Confidentiality is the single most sensitive element of this phase. A disciplined advisor protects the identity of the company, the fact of the process, and the information flow to any single buyer.

Phase 3: Indications of Interest (4 to 6 weeks)

Following CIM review and initial management calls, buyers submit non-binding Indications of Interest (IOIs). A typical IOI includes:

Proposed valuation range (usually expressed as an EBITDA multiple)
Form of consideration (cash, rollover equity, seller note, earnout)
Treatment of working capital and net debt
Rollover or employment expectations for the seller
Conditions to moving forward (diligence items, board approvals)

The advisor evaluates IOIs not only on headline price but on certainty of close, cultural fit, post-close vision, and counterparty track record.

Phase 4: Management Meetings and Buyer Selection (3 to 4 weeks)

A short list of three to six buyers is invited to management meetings. These are carefully choreographed:

On-site or virtual sessions led by the owner and key operators
Focused Q&A sessions with department leaders as warranted
Introductory visits to key facilities when relevant

Post-meeting, buyers are asked to submit Letters of Intent (LOIs) — binding on exclusivity terms, non-binding on price but substantively detailed.

Phase 5: Exclusivity and Due Diligence (6 to 10 weeks)

Once an LOI is executed and exclusivity granted, the buyer begins confirmatory diligence:

Financial diligence — buy-side QoE, typically by a national accounting firm
Legal diligence — contracts, corporate records, employment, IP, litigation
Commercial diligence — customer interviews, market validation, competitive landscape
Operational and IT diligence — systems, processes, cybersecurity
Tax and structure — transaction structure optimization

Meanwhile, the legal teams negotiate the Purchase Agreement — the definitive legal document governing the sale.

Phase 6: Signing and Closing (2 to 4 weeks)

Signing and closing may occur simultaneously or be separated by a regulatory waiting period. Key closing mechanics include:

Final working capital calculation
Escrow funding for indemnification
R&W insurance policy binding (if applicable)
Debt payoff and lien releases
Distribution of proceeds to the seller

What to Expect as an Owner

A well-run process is intense but orderly. Expect the following:

Weekly process calls with your advisor to review buyer activity
Regular, targeted diligence requests — batched and prioritized to protect your time
Emotional inflection points — particularly at IOI, LOI, and final price discussions
A clear separation between running the business and running the process

Maintaining normal operating performance during the process is critical. Any material decline in financial performance can trigger price renegotiation.

Working With a Boutique Advisor

The single most important decision an owner makes is choosing who runs the process. A boutique M&A advisor offers senior-level attention, a disciplined process, and direct accountability — the same senior professional who signs the engagement letter is the one who runs the auction, negotiates the LOI, and sits at the closing table.

At Sligo Strategies, we run focused, confidential processes for owners of privately held lower middle market businesses. Start a confidential conversation →