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Henrietta Mason

Senior Counsel

Henrietta Mason lawyer

Henrietta specialises in disputes about trusts and estates and has been praised in legal directories for her technical and strategic excellence.

She joined Farrer & Co in 2021 to lead on the Contentious Trusts and Estates team’s internal technical development needs and its external marketing strategy. 

Henrietta’s work since qualifying in 2003 has spanned the full spectrum of claims in this area, from domestic succession disputes and claims under the Inheritance (Provision for Family and Dependants) Act 1975, to complex multijurisdictional trust issues, negligence issues, trustee/executor removal applications, capacity questions, construction issues, and burial disputes, to name a few. She has a particular interest in cross border conflicts of laws issues, having qualified as a notary in 2010 (not currently practising). 

Henrietta seeks innovative solutions for clients, the firm, and the wider sector. In 2022, she founded CoLab, an association that brings together contentious trust and estates lawyers who are leading on knowledge and development strategy within their teams. Henrietta is a member of STEP (Society of Estate Practitioners) and ACTAPS (Association of Contentious Trust and Probate Specialists) and is co-author of the key textbook “Probate Disputes and Remedies”.

Memberships & Accolades

Henrietta is co-author of practitioner textbook ‘Probate Disputes and Remedies’. She sits on the Wills and Equity Committee of the Law Society, tasked with making suggestions for the improvement of the law in the sector. She is a member of the Association of Contentious Trust and Probate Specialists; the Charity Law Association and the Society of Trust and Estate Practitioners (STEP).

Testimonials

"Henrietta Mason – delightful and hugely knowledgeable. One of the best solicitors in London." (Legal 500 2023)

"Henrietta Mason is universally respected by her peers. She is all over the details of the cases, is fantastic with clients, has a wonderful sense of judgement, and sees the bigger picture."
(Chambers High Net Worth 2020)

"She is like a silent assassin – always capable of delivering a knockout blow. She knows the law extremely well. It makes me pause very carefully for thought when I have her on the other side." (Chambers High Net Worth 2020)

"Excellent, extremely knowledgeable about her area of the law and her advice is considered and strategically excellent." (Chambers High Net Worth 2019)

"She’s technically extremely competent, but also quick to get right to the heart of a dispute and to work out the best way in which to resolve it. She’s a joy to work with." (Chambers High Net Worth 2019)

"Whip-smart, direct and pulls no punches." (Citywealth Leaders List 2018)

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