"An excellent barrister with fantastic drafting skills - he always makes time for you"
"he has great presence"
he "advises comprehensively, and has a thorough understanding of the issues involved"
"he makes his case well and is a pleasure to deal with"
Chambers UK 2014
"highly sought after for advice and representation on the spectrum of tax, trusts and estates matters"
"charismatic" with a "calm and reasoned approach" and a "great sense of humour".
Clients warm to his "approachable and user-friendly manner".
Chambers UK 2012
“thoroughly good from a technical point of view” and “never ruffled in court, knows how to push a case forward”.
‘approachable and extremely helpful’
Legal 500 2010
Michael O'Sullivan has been in practice at the Bar since 1988 and his current practice incorporates:
Michael is recommended in current editions of the Legal 500 and Chambers UK Directories for his trust and probate work and his work in the Court of Protection.
Michael has been involved in a number of important and notable cases, including:
Currently acting in
Michael is currently advising in relation to a prospective probate action involving the estate of an Indian gentleman possessed of a property portfolio of £18m and is advising in relation to Inheritance Tax liability in the estate of a gentleman worth £10m.
He is also acting in connection with a reorganisation of a large landed estate in Suffolk and in connection with a charitable trust fund worth in excess of £20m established under the will of the infamous Christopher Dawes. He has also been involved in a variation of the will trust of a celebrated Oxford Publisher and an associated application to the Court of Protection. He is currently defending a claim for possession of property on the grounds of estoppel involving the estate of an American Billionairess.
In recent years Michael has acted in a number of substantial trust applications involving aristocratic settlements, one of which involved a fund valued at £150m.
He has also appeared in several substantial Court of Protection applications involving patients who are high net worth individuals. He has been instructed regularly by the Official Solicitor.
He has been involved in the negotiating and drafting of the compromise of a high value divorce which involved the variation of settlements that qualified as nuptial settlements. The settlement held shares in a private company that is prominent in the fashion industry.
He has drafted and advised in relation to personal injury settlements of large multi-million pound awards of damages.
Michael is an accredited mediator, trained through ADR Chambers
Michael is a member of:
Michael is the author of:
Michael is also a contributing author to the chapters on Purpose Trusts and Protective Trusts in Tolley's Trust Drafting and Precedents.
Michael has written various articles, including:
Michael frequently lectures and he has recently lectured on the following topics: