We act for many high-net-worth UK and international individuals and families on all aspects of private client.
With Quastels’ long-standing history and reputation in acting for wealthy individuals and our emphasis on solution-based advice, often with an international dimension, we are well placed to advise on a wide range of issues to help our clients achieve the peace of mind they will often seek.
Our focus is on nurturing our relationships with our clients over the long-term, advising several generations on their personal and business affairs relating to areas such as UK tax, lifetime and succession planning, residence and domicile, trust law, Wills and LPAs.
In addition to our experience in the traditional private client space, we have a growing expertise on the interplay between wealth and technology, and can advise on the taxation and structuring issues arising from the burgeoning cryptoasset sector.
Whether you are moving to the UK for the first time, purchasing or selling property, building or have built a substantial business interest, or are looking at optimising inherited wealth to benefit future generations, our team at Quastels would be delighted to assist.

Ben Rosen

Simon Duong

Michael Haringman
Ben Rosen
Ben is a versatile and commercial-thinking Partner who brings to Quastels a broad range of experience in advising individuals, families and companies, both UK and international, on UK tax, trust and succession planning matters.
His expertise includes tax advice on:
- Real estate
- Shares (acquiring, owning and disposing company shares) and partnership
- Wills, trusts and Lasting Powers of Attorney
- Residence and domicile issues
- Lifetime tax planning
- Pre-arrival tax planning for international individuals and families
- Cryptocurrencies, NFTs and digital landscape
Ben is a member of the Law Society’s Tech London Advocates Blockchain Working Group.
Ben has a commercial and personal outlook in his approach to technical issues faced by individuals and families, seeking to find a sensitive balance between the human and financial considerations faced by many clients.
Email:brosen@quastels.com
Tel:+44 (0)20 7908 2530
Simon Duong
Simon is a solicitor in the Private Client team and advises high net worth individuals, families, and companies on UK tax, trust and estate planning both domestically and internationally.
His work includes:
- Wills, trusts and Lasting Powers of Attorney
- Estate administration
- Lifetime tax planning
- Pre-arrival tax planning for international individuals and families
Simon has a personal interest in art and cultural heritage assets and is a member of the Institute of Art and Law.
Simon also works with a network of trusted third-party advisers to provide a comprehensive service to each client, to achieve the best result when considering estate planning and wealth protection. Clients appreciate Simon’s proactive and thorough approach to each matter and he enjoys working with his clients to build enduring relationships.
Email:sduong@quastels.com
Tel:+44 (0)20 7908 2561
Michael Haringman
Michael Haringman is the firm’s Senior Partner. Michael advises primarily on commercial matters, commercial property transactions and trusts. His clients include global brands and retailers whom he advises on all commercial and strategic legal aspects of their operations, including acquisitions and disposals of both businesses and real property, lettings, joint ventures and funding requirements.
Over a period of 40 years Michael has developed an exceptional and trusted relationship with his clients, who rely on his insightful analytical approach to give them “complete peace of mind” . Michael serves on the Board of a number of these clients.
Email:mharingman@quastels.com
Tel:+44 (0)20 7908 2529