Management consulting firm due diligence

A management consulting firm has almost no hard assets to inspect — no inventory, limited equipment, no real estate — which means diligence here is almost entirely about contracts, people and intellectual property rather than anything a buyer can walk through and count. The findings that actually kill consulting deals cluster around a small number of specific issues, and a buyer who checks each of them systematically, rather than relying on the seller’s summary of the firm, is far better positioned going into a purchase agreement.

Read every engagement letter for its assignment terms

Pull the actual signed engagement letter for every active and recently closed engagement and read the assignment language specifically, rather than accepting a summary that the client relationship is “under contract.” Many consulting engagement letters simply say nothing about what happens on a change of ownership, which means the client’s cooperation, not the contract, is what actually lets the relationship transfer — and a client under no obligation to continue can decide not to. This gap only shows up by reading the actual document, engagement by engagement.

Confirm who owns the methodology, not just who uses it

Ask for the firm’s proprietary frameworks, diagnostic tools and standard deliverable templates and confirm, in writing, that the firm holds the intellectual property rather than an individual senior consultant or an outside contractor who helped build it. A tool used on every engagement for years can still legally belong to the person who created it if no assignment was ever signed, and a buyer who discovers this after closing may find the methodology they thought they purchased is not actually theirs to keep using.

Call the top clients directly, with the seller’s cooperation

Financial statements and engagement letters describe a client relationship on paper; a direct reference conversation, arranged with the seller’s knowledge as part of a staged disclosure plan, tests whether that relationship actually belongs to the firm or to one departing consultant personally. Ask each major client, where confidentiality allows it, whether they would continue engaging the firm under new ownership and whether their day-to-day contact is expected to remain. A revenue schedule that looks diversified on paper can still be effectively concentrated in relationships that run through one person, and a reference call is often the only way to find that out before closing.

Check restrictive covenants on every senior consultant, not just the seller

Review the employment agreements of every senior consultant with real client relationships for non-solicitation and non-competition coverage, and confirm the covenant’s scope, duration and geographic reach with a lawyer rather than assuming a signed clause is automatically enforceable. A firm where the founder has a strong non-compete but senior consultants have none is only partly protected, since those consultants are frequently the people who actually deliver the engagements and hold the client trust a buyer is paying for.

Verify utilization and billing records against what the seller reports

Ask for time-tracking and billing records supporting the utilization and realization figures in the seller’s summary — the share of available hours actually billed, and the share of billed time actually collected — rather than accepting a single blended percentage. A firm with strong reported margins but a history of write-offs, discounted final invoices or unbilled time that never converts to cash is a weaker business than the summary figures suggest, and this gap is one diligence can only find by tracing the underlying time records rather than trusting the top-line number.

Personal property, litigation and professional-liability searches

Run a personal property security search against the selling corporation — a PPSA search in most provinces, a different registry under Quebec’s civil law regime — to confirm no lender or supplier holds an undisclosed security interest, and run a litigation search to surface any current or past claim the seller’s disclosure has not already mentioned. Ask separately for the firm’s claims history under its professional or commercial general liability coverage, since a past dispute over engagement scope or advice given is a common and easy-to-overlook finding in a service business with no physical product to point to. Confirm current coverage would continue, or can be replaced, under the buyer’s ownership before treating a clean claims history as evidence the risk does not exist.

What a finding actually means once you have it

Not every finding is a reason to walk away — an engagement letter silent on assignment, or a senior consultant without a non-solicitation covenant, is common and can often be addressed through a purchase-price adjustment, an earnout tied to retention, or a fresh covenant signed as a condition of closing. What matters is that the finding is identified and dealt with explicitly in the purchase agreement, rather than discovered for the first time after closing, when the buyer has far less leverage to do anything about it.

• Assignment language in every active and recently closed engagement letter, read directly
• Written confirmation the firm — not a consultant or contractor — owns its methodology and tools
• Direct reference calls with major clients on whether the relationship survives new ownership
• Non-solicitation and non-competition coverage for every senior consultant, not just the seller
• A personal property security search and a litigation search against the selling corporation