Can a Will be challenged due to dementia or Alzheimer’s? Understanding the legal position

A guide to testamentary capacity, common grounds for challenge and the factors that can influence the validity of a Will.
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Our probate experts provide clear, practical advice on disputed Wills, inheritance, estates and trusts for clients across the Greater London region.
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The contesting of Wills, estates and trusts is a highly unique and specialised area of law. Our solicitors are nationally recognised for their work in this field.
The team focuses exclusively on contentious trusts and probate. This gives us the experience, insight and acumen to solve any dispute quickly and sensitively.
We offer strategic, pragmatic and practical advice around:
Our London contentious probate team includes some of the country’s leading experts in this area. We’ve worked on probate cases of all types, including high-net-worth and landmark cases involving complex estates and trusts.
These disputes can be emotionally challenging. We’ll guide you through the process sensitively and help you to develop a bespoke strategy for securing a fair outcome.
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“My sincere thanks to Brabners who came to my rescue with really sound and grounded guidance… I can now at last sleep well and now have the opportunity to embark on a new chapter in my life.”
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“Thank you so much, Nicola [Turner]. Please know that you have made a huge difference to my son’s life and my own — and we are hugely grateful for all that you have done. This is truly the first time in over four years where I don’t feel like I am carrying a ton of lead weight with me everywhere. We can finally begin to live again.”
Will & inheritance disputes client
“Danielle Pawson is a thoughtful and capable practitioner, known for her attention to detail and empathetic approach in managing complex and sensitive matters. Clients immediately warm to her affable nature.”
Client feedback, Legal 500, 2027
“Nicola Turner's focus is always on achieving the best results for her clients… She is adept at combining empathy with professionalism. She gets the balance right, offering a service which combines the personal touch with the pragmatism required to get her client to where he or she needs to be. If I was ever to find myself embroiled in probate litigation, Nicola would be one of the people to whom I would turn.”
Mediator
“Where Nicola Turner scores particularly strongly is that her assessment of the merits and weaknesses of her cases is highly accurate. This allows her to deal with her cases in a very focused and efficient way which leads to good outcomes and a high degree of satisfaction from clients. Her direct and proactive manner leaves opponents in no doubt that she knows what she's doing, which is crucial in these types of disputes.”
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Our “extremely knowledgeable” contentious probate and trusts team is one of the country’s most experienced and celebrated, by clients and peers alike. It’s led by Nicola Turner, described as a “stand out practitioner” in The Legal 500, noted for her “kind, thoughtful, understanding legal counsel” and tireless attention to detail.
We cover the entire Greater London region and beyond. Our state-of-the-art office space at 60 Cannon Street can be the perfect environment for potentially difficult personal discussions.
We’re a multidisciplinary team, with over 500 experts delivering the full range of legal services. Through Brabners Personal, we bring together specialist advice across private client matters such as estate planning and dispute resolution to help you plan and protect your future.

Founded in 1815 in Liverpool, we proudly opened our doors in London in 2026.
As a purpose-led law firm, we're driven by a commitment to make the difference in everything we do. In 2022, we became the largest UK law firm to secure B Corp certification — a symbol of our commitment to operating as a force for good.
Plus, through The Brabners Foundation, we’re proud to partner closely with charities to create lasting impact across England and Wales.

A guide to testamentary capacity, common grounds for challenge and the factors that can influence the validity of a Will.

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Penalties for executors who do not carry out their duties effectively can be significant and serious.

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