Jonathan Sleep

Senior Associate

023 8085 7327

Email Jonathan

Jonathan is a Senior Associate in the Succession and Tax team in our Southampton Office.

Main areas of practice

Jonathan’s main areas of expertise includes dealing with and advising on:

The administration of high value estates, including for business owners and farmers
Advising on inheritance tax and capital gains tax planning
Preparation of Wills, bespoke to his client’s individual requirements
Lasting Powers of Attorney
Creation of Trusts
Care Fees Mitigation

Clients

Acting for individuals to mitigate against inheritance tax, care fees and to provide safeguards against losing mental capacity.
Jonathan advises individuals, executors, personal representatives, beneficiaries, trustees and attorneys.

Expertise & Services

Jonathan was kind and understanding of my situation.
Legal 500, 2027

Career

Jonathan joined the firm in May 2017 having previously been the Head of Wills, Trusts and Probate Team for a major Private Client law firm in the South.

He has more than 22 years’ experience working as a Private Client Solicitor, specialising in wills and trust work, administering high net worth estates, taxation and inheritance tax planning.

Jonathan was recognised as a Rising Star in the Legal 500 for 2020, 2021, 2022, 2023 and 2024 results and named as a Star Associate in Chambers 2024.

023 8085 7327

Email Jonathan

Member of the Society of Trust and Estate Practitioners
Member of the Association of Lifetime Lawyers (formerly Solicitors for the Elderly)
Member of the Law Society Private Client Section

Significant Experience

Jonathan's experience includes acting for executors in the administration of high net worth estates, including farms, large buy to let portfolios, foreign assets and private business companies.
He has extensive knowledge in dealing with disputed estates under the Inheritance (Provision for Family and Dependants) Act 1975.

CLIENT TESTIMONIALS

Jonathan Sleep provides excellent service in all respects.
Chambers High Net Worth, 2026

Jonathan Sleep provides excellent service in all respects.
Chambers High Net Worth, 2025

Jonathan Sleep is an excellent and highly knowledgeable lawyer. He is also a kind, patient, and caring gentleman who is a pleasure to deal with.
Legal 500, 2025

Jonathan’s level of service is truly excellent and his attention to detail phenomenal. He has an amazing depth of knowledge, and I have complete confidence and trust in him.
Chambers High Net Worth, 2024

I cannot speak highly enough about the service provided by Jonathan. He has been truly exceptional and has worked on our behalf to achieve the best outcome for us.
Chambers High Net Worth, 2024

Jonathan Sleep is, without doubt, the best lawyer I have ever had the fortune to work with; in my opinion, he is a credit to the firm and the profession.
Legal 500, 2022