Due diligence isn’t just a formality—it’s a critical safeguard. When buyers cut corners or rush the process, they take on risks that can derail the entire deal or create serious issues post-acquisition. Below, our legal experts share some of the most common due diligence pitfalls, that can lead to paying more than the target business is worth or break a deal completely:

Hidden liabilities

Without thorough investigation, buyers may inherit unresolved debts, outstanding lawsuits, or compliance failures. These hidden liabilities can reduce the value of the newly purchased asset and can leave the acquirer financially exposed.

Unreliable financials and overpaying

If financial projections are unrealistic or not backed by verifiable data, the value of the business becomes questionable. It’s essential to get an accurate picture of revenue forecasts, margins, and all financial assumptions underlying the deal to ensure they align with reality.

Valuing a business based on future potential is reasonable – but only if that potential is properly assessed. Failing to evaluate market position, competitive threats, and growth opportunities can lead to overpayment and buyer’s remorse.

Legal or compliance issues

Upcoming litigation, regulatory breaches, or non-compliance with recognised industry standards and regulations can stall a deal or create legal complications later. To avoid post-deal surprises, you should instruct your solicitors to conduct a thorough legal review which should be non-negotiable before investing in a business.

Integration challenges

Even if the business looks good on paper, cultural misalignment, operational incompatibilities, or conflicting visions between two merging entities can make post-deal integration difficult. Working with your professional and legal advisors to carefully consider how the two businesses will work together and understanding common growth strategies is vital to long-term success.

Quality of contracts

If the value of the business lies in its contracts with customer or suppliers then due diligence on the detail of these is vital. There may be hidden trip hazards including a right to terminate on completion of the transaction. If these are identified and addressed before completion the value and potential of those contracts will be maintained.

Top tip

Proper due diligence protects your investment, ensures commercial clarity, and sets the foundation for a successful acquisition. At every stage, experienced legal guidance from your solicitor can make the difference between a smart purchase and sale—and a costly mistake.

A strong management team with industry expertise is key to the success of any business. This is true at all stages of the business life cycle, but it pays real dividends when the time comes for a founder to exit. Here our lawyers explain why a management structure that lacks depth and experience makes it harder for a founder to leave:

Failure to introduce two tier management structure

A well-established 2 tier management structure is essential. This means responsibility for overall corporate supervision and strategy on the one hand and day to day operations on the other are clearly separate. Such a set up removes any risk that too much power and influence is concentrated in an individual founder. Without such division of responsibilities a founder who wants to depart the business will find a full, seamless sale and exit difficult.

Risk that key staff leave before sale

Management and senior staff are a key business asset. Keeping them in place before, during and after any merger or acquisition reduces the risk that the business will be seen as unstable or that its value will be downgraded. Our lawyers can advise on ways to incentivise key staff through share options and other appropriate schemes.

Founder may face ongoing responsibilities to purchaser

Where the founder has retained disproportionate control over the business there is a risk that there has been insufficient attention paid to succession planning and the company’s long term direction. In such situations, a party seeking to acquire the business will often insist that the founder remains tied to the business until the buyer has fully integrated or has recruited a management team of appropriate calibre. 

A poorly structured management team risks devaluing the business

An effective management team with a track record of promoting investment and growth, reducing risk and encouraging a healthy corporate culture will inspire confidence in any potential buyer. Failure to implement best management practices is likely to reduce the value of the organisations in the eyes of investors and purchasers.

Top tip

Establishing a management team that can act independently and move the business forward post-sale is essential when planning for the departure of a business founder. Our lawyers can advise on the appropriate management structures and staff incentives to ensure you have a robust team that adds value to the business ahead of any sale.

The process of due diligence is integral to any business sale or purchase. The extent of a buyer’s enquiries will vary from deal to deal. However their wish to assess the commercial viability of the entity they are targeting should never come as a surprise. Here our legal experts look at the impact a failure to prepare for due diligence can have on the deal:

• If the seller is unable to produce key documentation on time or contracts with suppliers and others are incomplete, credibility with the buyer is likely to be affected.
• Being unprepared can be a distraction to the sale process and cause unnecessary delays. An inability to respond to reasonable requests for information from a buyer or investor shows a lack of transparency that could trigger more extensive enquiries, delaying completion and drawing on valuable staff resources.
• When the due diligence process slows down because the seller doesn’t provide information on time, the core business is often affected. Key staff become distracted from their day to day roles as they deal with due diligence obligations. In our experience this shift in focus often leads to a dip in productivity and then often a price chip by the buyer will follow.
• Distractions caused by lost documents and other failures to properly get ready for due diligence can create uncertainty. It creates the impression of a poorly run, unstable business. Ultimately this means a buyer may try to chip away at the agreed sale price.

Top tip

Many aspects of due diligence, such as regulatory compliance records, reflect best practice and should already be in place. Our lawyers work closely with founders and business owners thinking of selling to prepare for due diligence well in advance. Being ready means you can control the process, head off any potential threats to the deal early on and negotiate from a position of strength.

Employees of a business who have been verbally promised shares but have not actually been issued with them or an option to purchase can potentially disrupt a sale or purchase. Below our legal experts explain why:

• Staff who have not received shares promised to them are likely to be disgruntled. Dissatisfaction with the company at a time of transition can lead to low staff morale and frustration. This frustration may well endure beyond the sale, creating ongoing staffing issues.
• Where management and others have not received their allotted shares there is a possibility that they could successfully apply for an injunction, halting the deal until the matter is resolved. Even if the sale goes through those entitled to shares may claim against the sale proceeds for the value of the unallocated shares.
• Sellers should consider all potential claims like this. In one deal our lawyers were involved with, an employee produced evidence of a promise of shares going back 17 years!

Top tip

Any uncertainty around equity promised to staff can pose a real threat to the sale of a business. It can affect the sale price, lead to expensive legal claims and undermine the commitment to the business of key personnel. It’s essential to document all promises of shares and other issues ahead of any planned sale or ensure any liability is highlighted in the due diligence process.

Confidentiality agreements or NDAs come as standard in any business merger, acquisition or sale. And it’s not hard to see why. Due diligence and other aspects of the deal process involve wholesale disclosure of sensitive, confidential information. This may include details of an organisation’s assets, financial health and strategic plans. As our lawyers explain below, safeguarding this information until a deal goes through is imperative.

• A seller would not want to share sensitive information and trade secrets with a potential buyer without having a robust confidentiality agreement in place. Without an agreement, key corporate data will be left exposed if the deal falls through.
• It doesn’t happen often, but there are occasions when bogus approaches to purchase a business are made by competitors. These turn out to be fishing exercises engineered to gather trade secrets and details of trading terms and key staff.
• There is a significant risk of data breaches relating to personal information of employees and customers during the sale process. Along with strict protocols governing data access and security, a confidentiality agreement will minimise this threat.

Top tip

Until the deal goes through sellers should adopt the mindset that all buyers are potential competitors. With expert legal advice from your solicitor, you can ensure you have a comprehensive NDA that protects you, your employees and your business during the transaction and beyond.

One function of shareholder agreements is to regulate approval of any sale of the business. Who can approve a sale? How will sale proceeds be divided? Below our expert commercial lawyers highlight some reasons why you should have a comprehensive shareholder agreement in place if you are considering a selling a business:

• Where there are two or more shareholders, whether founder shareholders, employee shareholders or husband and wife a shareholders’ agreement should be entered into to govern the shareholders’ relationship.
• Individual shareholders need protection in the event of a shareholders’ death, divorce, bankruptcy, incapacity or if a shareholder commits any gross misconduct. A comprehensive agreement will include provision to deal with these eventualities, reducing any delay or uncertainty when the business is for sale.
• Without a shareholders’ agreement and unless the articles prohibit transfers, a shareholder is free to transfer shares as they see fit.  This could have dramatic, and even devastating, repercussions for the other shareholder(s) and the business. In particular, it could lead to a delay in any sale or merger or even prevent a successful transfer of the business. 

Top tip

Buyers will usually insist on inspecting shareholder agreements during the due diligence process. If there is no formal legally binding agreement in place it could raise concerns. At worst this could suggest inadequate corporate governance and a poorly run organisation – all leading to a lowering of buyer confidence, price reductions and jeopardising the deal.

Buyers of a business want total control, and this is only possible if they acquire all the shares. If individual shareholders refuse to sell their holdings, complete ownership of the business won’t be achievable. Here our legal experts explore the threat posed to a sale of a business when minority shareholders are uncooperative.

• Unless the articles or shareholders’ agreement specifically say so, a shareholder cannot be forced to sell their shares. In the arena of mergers and acquisitions this can prove fatal to any transfer of the business.
• The ability of shareholders to block or delay a sale depends on how the company articles are drafted and what provisions are contained in any shareholders’ agreement. There are ways to limit the scope of shareholders to thwart a sale, for example applying majority voting rights to certain transactions.  

Top tip

Ahead of any sale review your company documents, including the articles and shareholders’ agreements.  If necessary, obtain legal guidance from a commercial lawyer to modify the documents where possible and reduce the risk of a business sale being compromised by the actions of a minority.