Keystone Law

Testimonials

Collated independently by Legal 500 research team.

• ‘Exceptional and personal service where Nick Tsatsas took the time to explain what actually matters and what does not. Clear understanding of the law with insightful explanation of the commercial implications. If I could describe it in one word: smooth. I did not worry, because Nick always acted with speed, expertise and in a pro-active manner.’

• ‘Alexandra Carn was exceptional in her responsiveness to urgent enquiries and her attention to seeking the best advice and representation and representation possible. It was easy to have frank and open discussions about options and costs, and she sought ways to minimise financial exposure whilst still providing an excellent service. As a client, I felt that she represented my interests first.’

• ‘Alistair French is an exceptional lawyer and is just the partner you want in difficult situations. He provides clear, confident guidance and takes immediate action. Alistair goes above and beyond to really understand your situation and is incredibly responsive and kind. It is an incredible relief to have someone stand beside you and guide you through these challenging life moments.’

• 'What sets Angharad Harris apart is not just her legal acumen but the thoughtful, client-centered approach she brings to every interaction. She takes the time to understand the nuances of each situation, explains legal pathways clearly, and balances assertiveness with pragmatism, ensuring the best possible outcomes. If you are looking for an employment lawyer who is highly skilled, efficient, and genuinely invested in her clients’ success, I wholeheartedly recommend Angharad Harris — you will be in exceptionally capable hands.’

• ‘Emma Clark is an extraordinary lawyer, the best I've worked with. Exceptionally knowledgeable, smart, strategic, pragmatic. She is also incredibly personable, responsive, easy to communicate with. I always felt confident that she was achieving the best possible outcome for me.’

• ‘What sets Keystone Law apart is its innovative and highly responsive model, which clearly empowers its lawyers to deliver outstanding client service with flexibility and efficiency. In my experience working with Keely Rushmore, I found the combination of high-quality legal advice and strategic insight particularly valuable. Keely was exceptionally responsive and demonstrated a strong understanding of both the legal and human dynamics involved in negotiating a settlement.'

• 'Keystone’s structure appears to foster this level of personal attention and agility, setting it apart from more traditional firms. The collaborative and client-focused culture, combined with the use of modern technology and flexible billing arrangements, reflects a forward-thinking practice that I believe would be very appealing to prospective clients.’
• 'As an individual, Keely is not only extremely knowledgeable but also strategic, thoughtful, and empathetic. She was particularly adept at managing costs without compromising the quality of advice or the outcome. For example, rather than defaulting to formal legal correspondence, she encouraged me to maintain direct communication with my former employer where appropriate. This approach helped keep egos in check, preserved the tone of the negotiation, and significantly reduced legal costs.'
• 'Helen Sherborne has been my counsel for over a decade across many companies I work out. She is the most professional lawyer I have ever dealt with.'
• 'The law firm as a whole has been nothing short of exceptional — a team marked by professionalism, efficiency, and a true commitment to client service.'

Key clients

• Rutger Helbing
• Sophie Brook

Work highlights

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Richard Fox

Clive Howard

Jane Wheeler

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Natasha Forman