Giles Maynard-Connor KC

Call 1992
Silk 2021
Head of Business and Property Department and Head of Insolvency Team

"Giles is a heavyweight in the market. He is a clever, astute, and user-friendly commercial counsel, a team player, and he is a ferocious advocate with a winning mentality."

The Legal 500 2024
Photo of Giles Maynard-Connor KC

Professional Negligence

Giles is recognised as a robust, thorough advocate. He has a clear grasp of the issues involved in pursuing litigation against professionals and how best to overcome them. He works with his clients, favouring a team approach, particularly when faced with complex issues. With an in-depth understanding of the commercial world, he is adept at keeping his clients informed and aware of any issues that may arise at the earliest opportunity. Giles is a truly commercial litigator in terms of approach to his cases and his clients’ interests and needs. He recognises the importance of achieving his clients’ aims and objectives (whether at trial or through ADR) as quickly and as cost effectively as possible.

Giles is consistently noted as a leader in his field, is highly regarded for his ‘technical knowledge and commercial know-how’, and has a wealth of experience dealing with professional negligence litigation. Over the last 28 years he has appeared at all levels up to and including the Court of Appeal and even in the Supreme Court of the Seychelles and in the Supreme Court of Gibraltar.

In recent years Giles has successfully completed a number of complex cases involving claims against accountants, IFAs and solicitors. He has also recently appeared in the Supreme Court of Gibraltar, where he successfully appealed against a decision of a liquidator of a foreign insurance company in order to confirm a substantial proof of debt based on a UK judgment obtained against a firm of solicitors for breaches of undertakings given by them.

He has recently acted for clients in Hong Kong against solicitors based in that jurisdiction.

Earlier this year Giles (acting as leading counsel) secured an important victory in the Court of Appeal in the case of Allsop v Banner Jones and Cohen, which has significant and wide ranging implications for future claims (see more here).

Professional Negligence Cases


LSC Finance Ltd v Abensons Law Ltd [2015] EWHC 1163 (Ch)

Overfinch Bespoke Vehicles Ltd (in Liquidation) v Freddie White as Liquidator of Lemma Europe Insurance Company Ltd [13/5/15] Gibraltar


Alsop v Banner Jones & Cohen [2021] EWCA Civ 7: Acting for the Appellant in this complex professional negligence action. Successfully appealed to the Court of Appeal against the High Court’s order striking out part of the claim. The case continues.

Acting for claimant against defendant accountants in respect of alleged negligent advice as to corporate restructure.

Acting for claimant against defendant solicitors in respect of alleged negligent advice as to pursuit of multi-million pound planning litigation.

Acting for defendant firm of accountants in respect of counterclaim for negligent advice.