What Investment Funds Look for in Law Firms: Key Drivers Behind a Growing Trend in Spain

Over the past six months, I have met with several private equity funds that have sought my views on a number of law firms. This growing interest has become a transformative phenomenon within Spain’s legal sector.

A decade ago, opening law firms to investment from non-professional partners seemed unthinkable, particularly given the traditionally conservative nature of the sector.

Although still a minority trend, the enquiries we receive from investment funds continue to increase. There is already a clear shift in how the growth and future of the legal sector are being understood, both in Spain and globally.

The conversations I have had with Investment Directors from domestic and international funds revolve around very similar themes. One of the most widely accepted is the fact that law firms tend to deliver strong structural profitability. While the sector has not historically been characterised by financial sophistication, business margins are generally solid and predictable, especially in recurring advisory practices. I would note that investors tend to favour firms whose revenues are driven by recurring retainers rather than transaction-led activity. Combined with a typically moderate level of credit risk, this makes law firms an attractive opportunity for private equity investors.

Another key factor is scalability. In this regard, funds generally favour multidisciplinary firms, although they do not rule out highly specialised boutique practices.

As a result, investors aim to back genuine professional services platforms capable of scaling through diversification, technology adoption, and geographic expansion.

Another aspect that appeals to investment funds is the opportunity to professionalise management structures, optimising operating models and introducing a more corporate style of governance beyond the traditional partnership model. This may involve improving organisational efficiency through KPIs and more sophisticated reporting systems, streamlining hierarchies to create more commercially focused organisations, and investing in technology.

Consequently, the more institutionalised a firm already is, the less attractive it may appear to private equity investors, as there are fewer opportunities to drive operational improvements. International investors are increasingly looking to scale business models through advanced technology, particularly artificial intelligence, enabling legal services to become more competitive, agile, global, and cost-efficient.

In my view, this is a trend that is here to stay. Although still at an early stage, private equity participation in the legal sector is likely to be selective and gradual, with a particular focus on the middle market.

Investment funds are looking for profitability, scalability, measured professionalisation, and technology. Law firms, in turn, gain the opportunity to accelerate growth, modernise operations, and compete on a global stage while preserving their professional identity.

However, this model is not suitable for everyone. Not every law firm requires external capital, nor is every professional structure prepared to coexist with the logic of private equity. The key lies in understanding when opening the door to investment makes strategic sense, and when it does not.