Due diligence
What is due diligence?
Due diligence is a structured review of a company, asset, project, or transaction before a key decision is made. In legal and business practice, it usually means verifying facts, documents, risks, liabilities, and compliance issues before acquiring shares, purchasing assets, entering into an investment, financing a venture, or starting a strategic cooperation. Its purpose is not limited to collecting information. It is intended to identify material legal, financial, tax, operational, and regulatory risks so that a party can assess whether the transaction should proceed, on what terms, and with what safeguards.
In practice, due diligence is most often associated with mergers and acquisitions, private equity transactions, real estate deals, and corporate reorganisations. However, the concept is broader. A lender may conduct due diligence before granting financing. An investor may review a target company before taking an equity stake. A buyer may examine contracts, permits, litigation exposure, intellectual property rights, employment matters, or environmental issues before signing transaction documents. The exact scope depends on the nature of the transaction, the sector, the risk profile, and the time available for review.
From a legal perspective, due diligence supports informed decision-making and risk allocation. It helps determine whether the seller’s statements are complete, whether the target operates in compliance with applicable law, whether key rights are properly documented, and whether hidden liabilities may arise after closing. The findings often affect price negotiations, representations and warranties, indemnities, conditions precedent, disclosure schedules, and post-closing obligations.
What does due diligence cover?
Due diligence is not a single checklist used in every case. The review is tailored to the transaction and to the client’s objective. In a share deal, the review commonly focuses on the target company as a whole – its corporate structure, ownership, governance, contracts, debt, disputes, employment relations, licences, data protection, tax exposure, and regulatory compliance. In an asset deal, the emphasis may shift to title, transferability, encumbrances, contractual restrictions, and the legal status of specific assets.
Legal due diligence often covers, among other things:
- corporate documents and ownership structure;
- share capital, shareholder rights, and authority to enter into the transaction;
- material commercial contracts and change-of-control clauses;
- ongoing or threatened litigation, arbitration, and administrative proceedings;
- employment arrangements, management contracts, and key personnel risks;
- intellectual property ownership, licences, and infringements;
- real estate title, leases, easements, and zoning matters;
- regulatory permits, sector-specific approvals, and compliance procedures;
- data protection, consumer protection, and competition law issues;
- security interests, guarantees, financing arrangements, and covenant breaches.
Depending on the transaction, the review may also include tax, financial, technical, environmental, or ESG workstreams. In some matters, parties use a red flag report focused on the most material issues. In others, a full-scope due diligence review is required. There may also be differences in approach between a buyer-side review, which is more investigative, and vendor due diligence, which is prepared by or for the seller to facilitate the sale process and reduce uncertainty among potential bidders.
When is due diligence advisable?
Due diligence is advisable whenever a party is about to accept a significant legal or financial exposure. For businesses, this includes acquiring a company, purchasing an organised part of an enterprise, entering into a joint venture, investing in a start-up, granting financing, acquiring real estate for commercial use, or restructuring a group. For private individuals, due diligence may also be relevant in selected property transactions, family business succession, or high-value investments where legal status and hidden risks are not immediately visible.
Early legal review is particularly important where the target operates in a regulated industry, relies on key contracts, employs a significant workforce, processes personal data, owns valuable intellectual property, or has a history of disputes. In cross-border transactions, due diligence is also used to verify the impact of foreign law issues, group dependencies, sanctions risk, beneficial ownership questions, and local regulatory approvals.
A timely consultation with a lawyer can help prevent avoidable mistakes and reduce exposure to disputes, liability, or financial loss. If issues are identified before signing, they can often be addressed through transaction structure, price adjustment, escrow, indemnities, conditions precedent, or remediation measures. If they are discovered too late, the buyer or investor may inherit risks that are difficult or costly to resolve.
How can legal support help in a due diligence process?
Legal support in a due diligence process usually goes beyond reviewing documents. It includes defining the scope of review, preparing request lists, analysing virtual data room materials, identifying missing information, assessing legal significance, prioritising findings, and translating complex issues into practical recommendations for decision-makers. Legal advisers also support negotiations and help align the due diligence findings with the transaction documents.
Support from a law firm in the area of due diligence may include in particular:
- planning the scope and strategy of the review;
- conducting legal due diligence of a company, assets, or real estate;
- identifying red flags and material transaction risks;
- reviewing contracts, corporate records, disputes, and compliance matters;
- assessing risks related to employment, data protection, and intellectual property;
- supporting negotiations of representations, warranties, and indemnities;
- preparing or reviewing disclosure letters and closing conditions;
- advising on post-closing remediation and risk management.
Need support with a due diligence process? Contact us.
See also
- Business acquisition
- Commercial Law
- Share transfer
- Real Estate Law