Sophie Mass

Senior Associate

+44 (0)20 3535 1650 smass@kingsleynapley.co.uk

Our People

Sophie is a Senior Associate in the Dispute Resolution team. She specialises in trust, estate and court of protection disputes, often acting in high value and complex cases.

Sophie has experience acting in a broad range of matters, including will validity disputes, financial provision claims, breach of trust claims and trustee removal applications. She regularly acts in Court of Protection disputes regarding the appointment of attorneys or deputies, which often involve serious allegations of wrongdoing, and in statutory will proceedings.

Sophie’s wider litigation experience includes high value commercial, civil fraud, insolvency, and professional negligence claims.

+44 (0)20 3535 1650 Connect on LinkedIn smass@kingsleynapley.co.uk Download vCard

Sophie Mass and Anna Metadjer are also excellent.

The Legal 500, 2024

Areas of expertise

Recent Work

Acting for beneficiaries, executors and personal representatives in a wide range of inheritance and probate claims, including cases where wills have been challenged on the grounds of forgery, incapacity or undue influence
Acting for a spouse in a claim under the 1975 Act
Acting for a beneficiary of his father’s estate in relation to a dispute regarding the beneficial ownership of the matrimonial home in an intestacy
Acting for an executor of an estate in relation to a removal claim
Acting for the trustees of a family trust in relation to a trust dispute and a trustee removal application
Acting for a client bringing a claim on behalf of the estate in her capacity as executrix to challenge a lifetime transfer on the grounds of lack of capacity and/or undue influence
Acting in a wide variety of complex court of protection disputes
Advising a company in relation to a potential professional negligence claim in relation to a construction project

Professional Societies & Memberships

Young Fraud lawyers Association
ConTrA
Junior London Solicitors Litigation Association

In the Press

Financial abuse on the rise: what can advisers do to help? FT Adviser, February 2024
The clearest possible case for an Inheritance Act claim by a surviving spouse, eprivateclient, February 2023

Learn More

Trust and Estate Disputes Court of Protection Disputes Wills and Inheritance Disputes Elderly and Vulnerable Private Wealth Trustees Varying Trusts Fiduciary Duty Claims Appointing a Deputy Buying, Adapting and Selling a Property Gifts and Tax Planning

22 January 2026

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Sophie Mass

About Sophie

Areas of expertise

Recent Work

Professional Societies & Memberships

In the Press

Learn More

Insights from Sophie

2025 in review: Trust and estate disputes

Financial Abuse: What you need to know

Privacy series part two: Court of Protection – An open secret?

The future of will disputes part 2: Challenging validity based on issues with execution

Cross practice insights part 5: Can private wealth disputes be kept private?

The clearest possible case for an Inheritance Act claim by a surviving spouse