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Fiona Sinclair QC

Call: 1989 QC: 2013

    The Legal 500 - The Clients Guide to Law Firms

"Combining high intellect and commercial mindedness”, “utterly fantastic in the defence of substantial claims” and “well known for her expertise in really complex points”, Fiona Sinclair QC is praised for her "splendid courtroom performances" and "superb advocacy based on strong analysis". She “meets with universal acclaim” for the “excellent quality of her work”, is “a standout practitioner” who is “charmingly brilliant with clients” and “her drafting is second to none(Chambers & Partners 2013).  

“Truly first-rate” and “a joy to behold on paper” (Legal 500 2014).

“A dream to work with – she’s committed, gets her hands dirty, is not afraid of detail and is very well liked by clients” and  “Judges listen to everything she says” (Chambers & Partners 2014).

Very bright and very good at making complex issues understandable”, “controlled, thorough and resilient" and “very bright, very persuasive and very amiable.” (Chambers & Partners 2015).

Fiona is among the select number of UK barristers who are ranked as international leaders in their field. She has “a wealth of experience in professional liability matters.” (Chambers Global 2010-2014: Construction).

Before taking silk in 2013, Fiona was awarded Chambers & Partners Construction Junior of the Year 2012. In a rare dual nomination success, she was also shortlisted for Professional Negligence Junior of the Year 2012.

Fiona’s practice focusses on commerce and construction. She brings excellent advocacy, impeccable paperwork and strategic insight to disputes concerning (1) construction and civil engineering, including transport, (2) professional liability and (3) insurance/reinsurance. Her advocacy and team-management skills have been honed in domestic and international arbitrations, trial and appellate courts, adjudication and mediation.

Fiona enjoys any case with a significant technical content (whether the technicality is financial, scientific or legal) and which involves working as a team with solicitors, experts and lay clients. She relishes the challenge of choosing and using different dispute resolution strategies to achieve the best result for her clients. She has particular experience in managing large, multi-party disputes.

Before taking silk, Fiona was consistently ranked as a leading junior in her specialist fields by both Chambers UK and The Legal 500.In Chambers UK (2013) she was 'recognised as one of 4 New Square's top juniors' who 'meets with universal acclaim''. Described as "the whole package - she is charmingly brilliant with clients, and her drafting is second to none'. In Chambers UK (2012) solicitors reported that she provides "superb advocacy based on strong analysis", is "down to earth, reasonable and tough when necessary" and "excellent at professional negligence generally". Chambers UK (2011) noted that clients admire her “deep knowledge of the law”, her “pleasant and persuasive advocacy”, her “ability to analyse facts quickly and efficiently” and “the ease with which she deals with complex counterfactual scenarios”, so that she was "hugely in demand". Chambers Global (2011) reported that she is "highly impressive in court, with excellent skills of judgment." Chambers UK (2010) described her as “tough, charming and intelligent”, “gutsy and fearless” and “a force to be reckoned with”. While describing Four New Square as “without doubt the top set in the field of professional negligence”, the Legal 500 (2010) described Fiona as “particularly good” and (2011) as a "standout junior". In 2009, she was described in the Legal 500 as “fantastic, especially on paper. Her written arguments always look right.” In earlier editions of the directories, Fiona was described as “fearless in the courtroom and a wonderful orator”; “exceptionally bright and pragmatic”; “tough and very popular”; having “real presence in court" and “an impressive ability to handle difficult judges”; “an excellent advocate”.

Fiona appears regularly in the TCC and in the Commercial Court, on appeal, and in arbitrations and mediations. She acts as early neutral evaluator and as arbitrator, and is a TECBAR-accredited adjudicator.

Fiona has been an Editor of Jackson and Powell on Professional Liability since 1992 (she writes the chapter on Construction Professionals). She is a Committee Member of TECBAR.


M.A. (Cantab) LL.M. (Cantab)