Isobel Morton

Senior Counsel | LLB (Hons) Private Wealth Law

Isobel Morton is Senior Counsel at RMW Law, bringing over 16 years’ experience in advising ultra-high-net-worth individuals, family offices, and trustees on complex tax, trust law, succession, and family governance matters. She was previously a partner at Macfarlanes LLP, where she built a strong practice focused on both domestic and international private client work.

In 2012, she undertook a six-month secondment with Sullivan & Cromwell LLP in New York, deepening her expertise in cross-border estate planning and establishing her long-standing specialism in US/UK planning.

In 2021, Isobel was appointed Macfarlanes’ first Head of ESG, responsible for developing and implementing strategy on environmental, social, and governance issues, with a particular focus on sustainability.

Her expertise and leadership have been recognised across the profession. She was named a Rising Star at the Chambers Awards in 2019, has been ranked in Chambers & Partners, Legal 500, and the Private Client Global Elite, and was included in ePrivateClient’s 50 Most Influential list in 2022.

“Isobel Morton "is extraordinarily impressive," notes an interviewee, before continuing: "She is superb. Her technical skills are not to be questioned, but she's also fabulous with clients." Morton has considerable experience handling cross-border matters, with a particular focus on US-related matters. A source comments: "Isobel Morton is fantastic. I think she's very solution-driven, very technical and very approachable." Another source reports: "Isobel is very energetic, very knowledgeable and very hard-working. She is very good with next-generation clients; she really resonates with their issues. She is so collaborative and she works well with other advisers and lawyers. She's a very solution-driven lawyer and comes up with commercial solutions."

Chambers 2021

Legal Practice

Isobel specialises in:

Cross-border estate and succession planning: particularly US/UK planning for globally mobile families
Family governance: advising on frameworks for intergenerational stewardship
Trust law and structuring: complex arrangements for family offices and trustees
ESG and philanthropy: advising on sustainable strategies and charitable giving

She works closely with family offices, entrepreneurs, and trustees, ensuring their planning is both technically sound and aligned with long-term governance and sustainability objectives.

"She is by far the most knowledgeable and efficient lawyer in private wealth law that I have ever worked with. She is extremely thorough and direct. She is an exceptional lawyer and human being."

A US source, 2020

Career Highlights and Public Policy Leadership

Partner at Macfarlanes LLP (2018-2022)
Visiting Lawyer at Sullivan & Cromwell LLP, New York, focusing on cross-border estate planning (2012)
Appointed as Macfarlanes’ first Head of ESG (2021)
Independent consultant to a single family office, acting as strategic partner and liaison with advisers (2024)
Trustee of Founders Pledge, helping entrepreneurs participate in high-impact philanthropy (2023)

Awards and Accolades

Rising Star, Chambers Awards (2019)
Ranked in Chambers & Partners for Private Wealth Law
Ranked in Legal 500 for Private Client work
Listed in the Private Client Global Elite
Named in ePrivateClient’s 50 Most Influential (2022)

Thought Leadership

Regular contributor to leading publications on private wealth, ESG, and philanthropy
Speaker at international conferences on private client law and sustainable wealth management
Adviser and commentator on the intersection of ESG and private client practice
Contributor to the STEP Sustainable Stewardship Toolkit

Impact and Vision

Isobel’s unique blend of private client technical expertise, ESG leadership, and philanthropic insight enhances RMW Law’s ability to provide innovative, forward-thinking solutions to internationally wealthy families. As Senior Counsel, she combines her experience from top-tier City practice and family office consultancy with her passion for sustainability and responsible wealth stewardship, ensuring that clients’ legacies are structured with both precision and purpose.