Skip to content
Jonathan Haley corporate lawyer

Jonathan is a corporate lawyer with outstanding specialist knowledge of partnership and LLP law. He works closely with clients across the professional services and private capital sectors, advising them on large transformational and business critical transactions.

Jonathan is one of a few genuine experts in the field of transactional work involving partnerships and LLPs. He has extensive experience of the full range of corporate matters and frequently advises on private company M&A transactions, especially in the professional and regulated sectors.

Most of Jonathan's work involves acting for professional firms undergoing change, executing transactions or requiring complex constitutional work. He regularly advises on mergers or acquisitions by one firm of another, LLP conversions, preparing new constitutions and joint ventures.

His experience includes advising on one of the first private equity-funded purchases of a law firm following deregulation of the market under the Legal Services Act. He also acted on the merger that created the country's largest property agency and was lead adviser on the LLP conversion of a global top 10 architectural practice.

Jonathan's clients appreciate his approachable style. He is acknowledged for his efficient, pragmatic way of blending forensic knowledge with practical answers, providing effective solutions to niche problems.

His clients include traditional professional service firms, such as solicitors, accountants and property professionals; and FCA-regulated entities such as asset managers, wealth managers and independent financial advisers.

Jonathan’s client base centres on UK-based firms with a London focus. He also acts for overseas clients, often ultra-high-net-worth individuals and private capital investors with both UK and international assets.

Jonathan demonstrates particular commitment to his field of specialisation: he served for six years as honorary secretary and committee member of the Association of Partnership Practitioners. He contributes regularly to publications and seminars on LLP and partnership law; and he co-authored The Butterworths Guide to the Legal Services Act. He is a fellow of the Royal Geographical Society.

Recognitions

The Legal 500 2026

Partnership

Leading Partner

The Legal 500 2025

M&A: (Smaller Deals)

Practice Head

The Legal 500 2025

Partnership

Leading Partner

Chambers UK 2025

Partnership: Non-contentious

Band 1

Memberships

Association of Partnership Practitioners; Fellow of the Royal Geographical Society

Testimonials

"He is an excellent lawyer with great commercial nous." (Chambers UK 2026)

"Jon is one of the very best in this arena: he has authority and gravitas and is very good with clients." (Chambers UK 2026)

"Jonathan Haley is a very good partnership specialist who is superb with clients." (The Legal 500 2026)

"Jonathan gives clear and helpful advice promptly, and with a good degree of common sense." (Chambers UK 2025)

"He is experienced and knows the partnership market." (Chambers UK 2025)

"We really enjoy working with Jon. We always have measured and productive discussion about partnership matters." (Chambers UK 2025) 

"John Haley is a consummate solicitor. He knows his stuff and makes clients feel calm and confident." (The Legal 500 2025)

"Jonathan Haley is a strong corporate lawyer who inspires confidence in the LLP world. Superb with clients." (The Legal 500 2025)

"Jon Haley – Knowledgeable, intelligent, genial and highly commercial." (The Legal 500 2024)

"Jonathan Haley is a standout practitioner. He knows partnerships inside out, is quick and efficient and generally a joy to work with." (The Legal 500 2024)

"Jonathan Haley is a highly experienced corporate lawyer who is fantastic with clients and commands total respect." (The Legal 500 2024)

"He is one of the leading lights in the partnership world in London and a go-to for tricky partnership issues." (Chambers UK 2024)

"Jon is a brilliant, commercially astute lawyer and problem solver." (Chambers UK 2024)

Back to top