Do you know that most of the M&A deals don’t fail to succeed because of bad valuations? They are pushed out because of forgotten clauses in old vendor agreements or IP licenses that vanish at closing.
This is where a careful contract review helps buyers easily find out what they are really taking on before closing the deal. This plays a major role as it helps to avoid future regrets.
This guide shares all about due diligence teams, which contracts they consider first, and why small clauses have a strong impact on the deal.
Purchase agreements grab the headlines, but the contracts a selected company already holds in force decide what the buyer ends up getting. Revenue concentrated in three customer accounts, a lease with a strong assignment clause, or a software license tied to a specific entity name change the economic value of a deal long before lawyers redline a single enforceable provision.
Most reviews start with a data room grouped by contract category rather than by department, since deal teams need a full picture of their responsibilities before they set a price on risk. Legal operations schedules this intake alongside finance and compliance using a modern contract management lifecycle solution to process files, categorize risks, and ensure nothing remains in a single reviewer’s inbox for weeks. The following areas tend to surface across almost every exchange:
Each category signals a different workstream, from finance to human resources to IT, so the diligence team maps every document to the person who owns the specified risk. Compliance often enters this stage too, particularly when contracts touch classified data or cross-border business processes.
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A contract which sounds fine on its own turns into a legal obligation the moment ownership changes hands. Assignment and change-of-control clauses define if an agreement survives the transaction, needs consent, or expires outright, and diligence teams point out every one they find. Some clauses break automatically at signing, others only at closing, and the split shapes the entire negotiation timeline.
A single missed consent request often delays a closing by weeks or invites a renegotiation of price. Legal operations teams increasingly track these attachments inside a centralized contract repository, which consolidates covenants, consent requirements, and renewal dates in one place instead of distributed folders and email threads. This narrows the gap between the moment a clause pops up and the moment someone knows what to do about it, which matters most when a deal is riding on a tight signing-to-closing window.
Vendor contracts carry a similar risk. A sole-source supplier with a change-of-control clause often ends a delicate relationship right when the merged company needs it most, and buyers price this risk specifically into the deal or into post-close integration plans. Procurement teams often build a restoration plan for these relationships before the settlement even closes, rather than after.
Diligence findings from this stage frequently shape the official agreement’s indemnification schedules, purchase price adjustments, and closing timelines, a sequence Cornell Law School’s Legal Information Institute outlines in its overview of the company acquisition process. The findings rarely stay limited to the legal team, since finance and operations both depend on the same underlying contract data to plan collaboration.
Not every high-risk contract sits underneath the sales or procurement folder. Data processing addenda, software licenses, and executive employment contracts often pertain provisions few outside the legal team ever read, and compliance teams generally treat this category as a top priority given heightened data protection enforcement across jurisdictions.
Buyers who purchase technology companies pay close interest to intellectual property assignment language, since a contractor agreement without a fair work-for-hire clause sometimes involves core code handled by someone outside the company. Data processing agreements raise a similar question: whether the target’s existing vendor contracts enable the buyer to inherit data processing rights without new cooperation from end customers.
Firms which execute this diligence exercise regularly, sometimes called serial acquirers, tend to convert what once felt like a battle into a repeatable checklist. Board members who review a target company’s contract stack for the first time often profit from a playbook already in use, rather than a process initiated under deal pressure.
A checklist only helps if someone compares findings against a live list of contracts, owners, and deadlines. Legal operations generally owns this process and negotiates with finance, HR, and IT so no open item crosses through a gap between departments. A few patterns rise often enough to warrant a reputation checklist of their own:
These findings cannot promise a deal on their own, but missed ones usually surface after closing, when the cost of fixing them runs far wider than the cost of confirming them earlier. A contract stack read thoroughly before signing costs a few weeks of a legal team’s attention. A contract stack read prematurely costs a fair deal more.
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At the end of the day, a detailed review of a contract can be the major differentiating line between a smooth deal and an expensive one that makes you regret it later. Change of control clauses, IP rights, and data terms can all affect the value and future of an acquisition.
The central thing is to review these aspects at the right time, track important barriers, and give each finding to the defined team. A clear and repeatable process makes it easier to spot risks before they actually turn into major problems.
