Lois Horne Partner

Lois advises corporates, funds, investors, financial institutions and entrepreneurs on a broad range of complex, cross-border commercial and corporate disputes in High Court and international arbitration, with particular expertise in post M&A, shareholder and joint venture disputes, funds disputes, contentious insolvency, contract disputes, and senior executive restraint of trade disputes.

Lois has broad experience acting for corporates, or individuals with corporate interests, across a range of sectors, including private equity, financial services, aviation, energy, retail, beverages and commodities.

Lois' High Court and arbitration experience includes complex post-deal warranty and indemnity disputes, claims for fraudulent misrepresentation, valuation issues, shareholder rights and unfair prejudice claims, contentious insolvency, banking disputes concerning complex financial products and breach of commercial agreement claims. She also advises on directors' duties and employment issues with respect to senior officers, team moves and breaches of confidence. As well as advising on the resolution of disputes, Lois advises on the prevention of and investigation into financial crime, including bribery and fraud.

Lois is often involved in dealing with highly sensitive matters which go to the heart of a corporate's commercial objectives. She understands the importance of resolving disputes in the context of broader commercial, reputational and often regulatory contexts. Her breadth of experience enables her to deploy a smart strategy to achieve her client's objectives in a pro­active manner.

Lois' work is cross-border, often advising a foreign party on English law disputes, including clients from India, Africa, US, and Asia, as well as throughout Europe. She has expertise in High Court and international arbitral trials, as well as expert determination and alternative dispute resolution.

She is a qualified solicitor-advocate and Chair of the City of London Law Society Litigation Committee, as well as being a committee member of the London Solicitors Litigation Association and Commercial Litigation Association.

Qualified in England and Wales, 2005.

What people are saying


"Lois Horne is a star. She is the complete package: ferociously bright, commercial, hands-on and tactically astute, looking two moves ahead. She has a superb feel for the points that will and won’t fly with a tribunal, and the route through to the best commercial outcome for her clients."

The Legal 500 2024

"Lois provides excellent levels of service and strong understanding of commercial issues."

Chambers UK 2024

"Lois Horne is a superstar. She is all over the papers, has superb tactical judgement and a sense for how points will play before a tribunal, and thinks several moves ahead."

The UK Legal 500 2023

"A deeply realistic and pragmatic litigator who doesn't take bad points or raise expectations unnecessarily, so the client knows what is coming."

Chambers UK 2023

"Lois is commercial and works unbelievably hard - she is absolutely super."

Chambers UK 2023

"Lois Horne is a stand-out partner. She is extremely bright, commercially minded and client-friendly. She is always on top of the documents and the detail as well as the big picture. She has an excellent sense of how a point will play before a court or tribunal and thinks tactically several steps ahead."

The UK Legal 500 2022

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