Graham Chapman QC > Chambers of Mark Cannon QC > London, England > Lawyer Profile

Chambers of Mark Cannon QC
4 New Square

Living Wage

Graham Chapman photo


Specialises in the fields of commercial, offshore and professional liability, covering the full range of claims against professionals; other areas include insurance, banking and financial services, IT.


Qualified 1998; Silk 2014; Inner Temple; awarded a major scholarship by Inner Temple; tenant at 4 New Square, Lincoln’s Inn.




Westcliff High School for Boys; Oriel College, Oxford (1997 BA Hons Jurisprudence 1st), Martin Wronker Prize for best finals paper in Jurisprudence; Scholar of Oriel College, Oxford.


Golf, motor sport, cricket, the arts.

Lawyer Rankings

London Bar > Commercial litigation

(Leading Silks) Ranked: Tier 5

Graham Chapman QC4 New SquareA first-class silk – incredibly user friendly and very down to earth, he has a wonderful brain.

A ‘great set‘ with ‘several heavyweights and rising stars‘, 4 New Square is an increasingly popular destination for the City’s top litigation firms and practices, thanks to its impressive range of experienced silks and hungry juniors. Recently, Justin Fenwick QC and Graham Chapman QC represented Oleg Deripaska and Lolita Danilina respectively in their dispute with Vladimir Chernukhin and others in a major trial before the Commercial Court. Lucy Colter was Fenwick’s junior on the case.

London Bar > Offshore

(Leading Silks) Ranked: Tier 3

Graham Chapman QC4 New SquareVery smart, incisive and effective.

An ‘approachable and friendly set‘ that is ‘more accessible than quite a few of the Chancery sets, 4 New Square handles a mixture of work in the offshore space, with a stronger focus than others on professional regulatory proceedings and negligence claims against auditors and other professionals, on top of the typical company and insolvency matters. Justin Fenwick QC continues to represent the liquidators of Stanford Bank in Antiguan proceedings against two international law firms following the collapse of the notorious Ponzi scheme. Graham Chapman QC represented a defendant fund manager in a case in the Isle of Man, and represents a law firm in professional negligence case in the Cayman Islands.

London Bar > Fraud: civil

(Leading Silks) Ranked: Tier 4

Graham Chapman QC4 New SquareIncredibly user friendly and very down to earth, approachable and has a wonderful brain.

London Bar > Professional negligence

(Leading Silks) Ranked: Tier 3

Graham Chapman QC4 New SquareHe is ferociously clever.