Miles Harris


MA, Trinity College, Cambridge University; Dip. Law, City University; David Karmel and William Shaw Awards from Gray’s Inn

Tel: +44 20 7822 2040
Email Clerk:

Year of Call: 2003


Miles is a specialist in professional liability, insurance and commercial litigation.

He has been described by Chambers as “an absolute gem” who is “fabulous with clients and incredibly on top of the detail” (2014) and “an outstanding barrister whose personal skills are superb. He has a great ability to make you feel comfortable…” (2015). Chambers also states that he "Consistently delivers high-quality work, goes the extra mile and is very approachable." And that "He is very, very polished - he really goes through all the papers and he thinks outside the box." (2016).

The Legal 500 has described him being "Extremely bright but user-friendly, commercial, hardworking and reliable." (2016)

He strives to provide his clients with effective advocacy and advisory services that combine diligence, efficiency, knowledge of the law, approachability and commercial sense.

Miles acts in a wide range of cases within his areas of expertise, led and unled, from straightforward to complex high value multi-party disputes, from the County Court to the High Court and the Court of Appeal. He has also been published and lectured widely, especially in matters related to the civil liability of lawyers and insurance. Miles is also an established accredited mediator, accepting instructions in a range of civil disputes. He is described in Chambers 2016 as having “extensive experience as a mediator and arbitrator”.

Miles is a member of the Professional Negligence Bar Association, the British Insurance Law Association, COMBAR and the Bar Pro Bono Unit.

Publications and Seminars

Miles has written a number of articles on issues of importance in professional liability and insurance law and has been published in the Journal of Professional Negligence, the New Law Journal, Insurance Law Monthly and the Sweet & Maxwell Civil Procedure Rule Reports and by the Practical Law Company. He has also provided solicitors’ liability training to the claims handling unit of a leading firm of solicitors and lectured on a number of different topics including the SRA Code of Conduct and legal professional privilege. He is the author of the Practical Law Company’s practice note on the pre-contractual duty of utmost good faith. 


Professional Liability

Miles is recommended by the Chambers and Legal 500 in the field of professional negligence.

Chambers comments that he “handles defendant and claimant professional negligence cases, and is celebrated for his knowledge of insurance-related negligence claims” and that he is an “an outstanding barrister whose personal skills are superb. He has a great ability to make you feel comfortable...” (2015) and “An absolute gem” who is “fabulous with clients and incredibly on top of the detail” (2014).

The Legal 500 (2015) described Miles as having “Great commercial awareness, as well as technical ability which sets him apart” and being "extremely bright but user-friendly, commercial, hardworking and reliable" (2016).

He has wide experience of all issues relating to professional liability. He has represented both claimants and defendants in matters involving solicitors, barristers, licensed conveyancers, surveyors, managing agents, insurance brokers , financial advisers, tax consultants, accountants, auditors, architects and veterinary surgeons.

Miles has experience of claims involving all aspects of a professional’s potential liability, including allegations of breach of duty, retainer and trust, breach of fiduciary duty, deceit, dishonest assistance, fraudulent conspiracy and breaches of relevant regulatory provisions, such as the Financial Services and Markets Act 2000.

He has also provided training to firms on solicitors’ and surveyors’ liability generally and written and spoken on specific issues of importance in professional liability including limitation, privilege, the assessment of quantum in lenders’ claims, the SRA Solicitors’ Code of Conduct and coverage issues.

Accountants, Auditors & Actuaries

Miles acts both for and against accountants, auditors and tax advisers. On a number of occasions this has involved acting in multi-party, group-style litigation by investors against accountants and tax advisors involved in advising upon and/or promoting   tax avoidance schemes, in particular relating to film finance. In this litigation, Miles has assisted clients in meeting allegations of negligence, breach of contract, misrepresentation, breach of trust, joint venture liability and liability under FSMA 2000. Most prominent was Miles’s involvement on behalf of Castle Tax consultants in connection with a film finance scheme operated from Jersey.

Other examples of his experience in this area include acting for/advising:

An accountant resisting an attempt to compel answers to questions arising from an expert determination.

Financial Services Professionals

Miles is regularly instructed in claims involving financial services professionals including allegations such as failure to recommend appropriate investments and life insurance and breaches of the conduct of business rules under the Financial Services and Markets Act 2000.

By way of example, Miles has in recent times:

Insurance Brokers & Agents

Miles has acted and advised in connection with in numerous claims involving insurance brokers.

Chambers comments that he “is celebrated for his knowledge of insurance-related negligence claims” (2015).

Miles work in this area has included:


Miles has extensive experience of claims against lawyers, from the Court of Appeal, to the High Court to working in the professional liability department of a city firm of solicitors, to a secondment in the claims handling section of a major professional liability insurer.

Miles has often undertaken wasted costs work, again for both solicitors and barristers. He also has extensive experience of coverage issues arising from claims against solicitors and the operation of the Minimum Terms and Conditions.

The following is a selection of Miles’ work in this field:

Miles has also lectured and written in this field and both devised and provided a training programme on the law in relation to solicitors’ liability on behalf of a firm specialising in claims against solicitors.

Surveyors & Valuers

Miles has acted in numerous claims against surveyors and valuer. He has not only acted for both lenders and solicitors in connection with particular claims, but has also provided lenders with high level advice on generic issues to assist them with recovery strategy. Miles has been involved in claims raising all the major issues thrown up by lenders’ claims including contributory negligence, fraud, coverage, syndication and the applicability of the SAAMCo ‘cap’.

By way of example, Miles has:

Commercial Dispute Resolution

Miles advises and appears regularly in commercial disputes including cases concerning sale of goods, supply of services, mortgages, credit agreements and guarantees. He has particular experience of representing lenders and financial institutions.

Claims have included:

Insurance & Reinsurance

Miles is often instructed in connection with insurance disputes as advocate and arbitrator.

Chambers 2015 comments that he is “celebrated for his knowledge of insurance-related negligence claims”. This knowledge is founded on considerable experience of acting in insurance disputes involving a wide range of risks including property, D&O, ATE legal expenses insurance, business interruption, life and long-term sickness.

Recent cases include: 

Miles also has significant experience of professional liability insurance, especially issues arising from the Minimum Terms and Conditions for solicitors. By way of example he has:

Miles has frequently been published in the Insurance Law Monthly and is the author of the Practical Law Company’s practice note on the pre-contractual duty of utmost good faith. He has recently been lecturing widely on the content and implications of the Insurance Act 2015.


Miles undertakes an increasing amount of costs work and has acted both on behalf of solicitors seeking costs and disgruntled clients. The costs works naturally fits with Miles’ extensive experience of solicitors’ liability and regulation.


Miles has established a strong and growing reputation as an accredited mediator. This area of his practice has built on his experience of mediations as an advocate covering disputes up to very complex, multi-party, multi-million pound, multi-day mediations. He has had particular experience in disputes arising from the areas in which he practises, but accepts instructions in connection with a very wide range of civil disputes.

Recently, Miles has mediated to settlement: partnership disputes, multi-party professional negligence disputes involving professionals, clients and banks, multi-party disputes involving clients, professionals and a trust fund and numerous two party professional negligence claims. 

Property Damage

Miles is frequently instructed in connection with claims involving property damage. 

He has dealt with claims arising from flood, fire, electricity outage, water penetration, subsidence and heave (including tree root damage) based on various causes of action including contract, negligence, nuisance, Rylands v Fletcher and the Consumer Protection Act 1987.

Recently Miles was instructed as junior (to Graham Eklund QC) in the defence of claims put in excess of £20m arising from the destruction of a warehouse by fire.

Miles has also acted in connection with claims involving: