As evidenced by his ranking in Chambers & Partners as a leading silk across six practice areas (Banking, Chancery Litigation, Commercial Dispute Resolution, Company, Partnership and Professional Negligence) and  (in 2022) a “Star of the Bar”, he is viewed (by peers, solicitors and clients) as the “complete all-rounder” being equally adept at all aspects of the advocate’s role which he couples with tactical/strategical acumen and an affable and approachable style. His skills and reputation as a robust cross-examiner mean that he is particularly sought after for trial work. Chambers & Partners have described him as a “superstar on the Northern Circuit”

Mark appears regularly in the Court of Appeal, High Court and in Arbitrations.

Expertise

Throughout his time at the Bar, Mark has regularly advised and acted on behalf of a number of major banks and finance providers in relation to Banking Litigation to the extent now that he is regarded as one of the leading silks outside London in this area of work. His practice in this regard encompasses (among other things) all issues relating to security enforcement (including challenges to the validity of the security), security rectification and completion, title defect resolution, restitution (in particular recovery of payments by mistake), fraud, guarantees, bills of exchange, consumer credit and professional negligence in the context of the bank/customer relationship.

Notable Banking & Financial Services cases


R (on the application of Fortt) v Financial Services Compensation Scheme Ltd [2022] EWHC 152 (Admin)

Challenge to FSC determination


Hodgson v Creation Consumer Finance Ltd [2021] EWHC 2167 (Comm)

Acting for the C in a test case in which it was alleged and found that a supplier of solar panels had made misrepresentations as to the performance of the solar panels and that the company financing the purchase were liable for the same. Case also deals with approach to assessment of damages in such cases.


Secure Mortgage Corporation Ltd v Harold & others [2020] EWHC 1364 (Ch)


Philbin v Davies [2018] EWHC 3472


Re Capital Funding One Limited (in Administration) [2017] EWHC 3567


Mark’s practice encompasses all the work carried out in the Business & Property Courts

Notable Chancery Litigation cases


O’Brien v Phipps [2023] EWHC 1153 (Ch)

Oral declaration of trust over shares


Tomlinson v Tomlinson [2023] EWHC 2083 (Ch)

Specific performance of settlement agreement including consideration of whether the operation of an acceleration clause in the agreement was conditional on prior performance


Re Jones [2020] EWHC 1112 (Ch)

Statutory demand in respect of unpaid directors’ loan account where an issue as to whether or not loans drawn in the anticipation of dividends could be recovered where dividends did not materialise


Secure Mortgage Corporation Ltd v Harold & others [2020] EWHC 1364 (Ch)

Acting for the Company in obtaining declaratory relief that the appointing executors were not entitled to appoint an administrator under Sch B1 Insolvency Act 1986 as it had not demonstrated that the deceased had succeeded to the security that had been relied upon or that there was an enforceable debt due and owing. Also; the point that because probate had not been taken out the Executors were unable to prove title to the security


Maher v Maher [2020] EWHC 1000

Claim concerning the administration of a trust that was the shareholder in the family company of which the trustees were directors. Consideration as to whether or not all or some of the present trustees should be removed and whether a binding decision taken by the trustees to sell the shares.


Utilise TDS Ltd v Neil Davies & others [2016] EWHC 2127 (Ch)

Issue as to whether an implied term in a settlement agreement reserving the C’s rights to proceed with claims against other defendants


Mark’s practice encompasses the majority of the work of the Commercial and Circuit Commercial Courts

Notable Commercial Dispute Resolution cases


Kelly v Baker [2022] EWHC 1879 (Comm)

Whether directors owed fiduciary duties to the shareholders of a company in relation to a management buy-out.


Asher v Jaywing Plc [2022] EWHC 893

Oral modification of earn out provisions in a SPA.


AAA v CCC [2022] EWCA Civ 479

Appeal against unduly lenient committal order imposed for breaches of a super-injunction


Ardent Advisors Ltd v UK Web Media Ltd & others [2021] EWHC 63 (Comm)

Construction of payment calculation mechanisms in a corporate finance advisor agreement.


AAA & BBB v CCC [2020] EWCA Civ 846

Successfully represented the Respondent. The appeal was from a final injunction granted by HHJ Eyre KC on the Respondents’ summary judgment application (on which Mark also acted) to enforce the confidentiality, non-disparagement and privacy obligations contained in Share Purchase and Employee Compromise Agreements. On appeal the Court considered the question(s) as to the width of the relief granted and the certainty of the terms used in the injunction and the underlying agreements.


In addition to all aspects of company litigation, Mark is regularly instructed to provide advise on matters relating to the internal conduct of the affairs of limited companies and LLPs including issues surrounding the proper convening and conduct of meetings, reduction of share capital, removal of directors and shareholders, alterations to Articles of Association and Shareholder Agreements.

Notable Company cases


Durose v Tagco BV

Dismissal of unfair prejudice petition where conduct of PE investor was permitted by the investment agreements and there was no basis to impose equitable restraints on the exercise of those powers.


Re Electrical Control Installations Ltd [2021] EWHC 2661

Unfair prejudice petition where majority alleged to have conspired to divert business of the the company to a company in which only the majority were interested.


Taylor Goodchild Ltd v Taylor [2021] EWCA Civ 1135

Application of Henderson v Henderson abuse of process to claims pursued by a company against a former director/shareholder where there had been a determined unfair prejudice petition in which the facts giving rise to the claims were live.


Re Macom GmbH (UK) Ltd [2021] EWHC 1661

Unfair prejudice petition by a majority shareholder for breaches of a shareholder agreement where Court despite finding unfair prejudice declined to make a buy-out order and instead imposed a management order.


Re Jones [2020] EWHC 1112 (Ch)

Statutory demand in respect of unpaid directors’ loan account where an issue as to whether loans drawn in anticipation of dividends could be recovered where the dividends did not materialise.


Robert Glwe and Denton and Co Trustees Ltd v Matossian-Rogers [2019] EWHC 3183 (Ch)

Permission to pursue derivative claim against defaulting director.


Re Audas Group Ltd [2019] EWHC 2304

Successfully acted for the petitioner in establishing that he had been unfairly prejudiced as the majority shareholders had dismissed him when acting in bad faith and/or for improper purpose, had not offered him fair value for his shares and had managed the company post his exclusion without complying with the terms of the Shareholders Agreement.


Buckingham Homes Ltd v Rutter & others [2019] EWHC 1760

Successfully acted for the defendant directors in defending a claim that they had breached their statutory duties by selling a property as opposed to retaining and developing it.


Zavaco Plc v Nasir [2017] EWHC 2877

Requirement for subscriber shares of €36 million to be paid in cash and the interaction between sections 584, 593 and 594 Companies Act 2006.


Wootliff v Rushton-Turner & others [2017] EWHC 3129

Unfair prejudice petition considering whether or not a joint venture company was a quasi-partnership and whether or not removal and/or dilution of shares was unfairly prejudicial conduct.


Wootliff v Rushton-Turner & others [2016] EWHC 2802

Whether the jurisdiction under s996 Companies Act 2006 was wide enough to include a payment of compensation by the Company to the Petitioner for wrongful dismissal.


Brian John Harris v Microfusion 2003-2 LLP & others [2016] EWCA Civ 1212

Representing the C (being the representative of a group of investors in a Film Partnership Scheme) seeking permission to bring a common law derivative claim against the managing partners of the LLP


Mark regularly provides advice and representation in relation to all issues arising out of corporate and personal insolvency with particular emphasis on (a) contentious proceedings in relation to allegations of misfeasance, transactions at an undervalue, preference and transactions to defraud creditors; (b) challenges to the appointments and/or decisions of office holders; (c) income payments orders in the context of personal bankruptcy and (d) suspension of discharge in the context of personal bankruptcy. This aspect of Mark’s practice also includes Company Director Disqualification and Public Interest Winding Up with him building on the experiences he had whilst acting for the Secretary of State for in excess of 12 years.

Mark has developed a leading practice in the area of partnership law (as recognised by his recommendation in this field in Chambers & Partners). His practice in this area involves advice and representation in relation to all aspects of partnership law (including the applicability of Equality Legislation in the context of partnership disputes) and he is a regular “port of call” for professional partnerships in the North West (or individual partners within such partnerships) when advice is needed in connection with partnership matters, in particular exclusion of partners, breakdown in relationships between partners and the protection of partnership assets consequential upon the same.

Mark has considerable experience of providing advice and representation to both Claimants and Insurers in relation to professional negligence claims involving solicitors, accountants, financial advisers, and surveyors. This practice involves a considerable amount of work concerning the mis-selling of financial, investment and tax-saving products and schemes including products such as alternative invest markets, unregulated collective investment schemes, film schemes, environmental/eco tax saving schemes, endowment purchase schemes etc.

Mark has recently started advising and providing representation in relation to public law challenges to decisions of Professional Regulatory Bodies and public bodies in Financial Services industry.

Mark’s Dispute Resolution Practice (see above) involves sports related disputes and his experience in this regard is illustrated by his representation of Sir Bradley Wiggins and (with Paul Chaisty KC) of Wayne Rooney in their disputes with their former management companies (see under Commercial Litigation). Mark’s practice also encompasses providing advice and representation in relation to (a) proceedings before Sports Tribunals; (b) arbitrations; (c) challenges in the Courts to the disciplinary decisions of Sporting Bodies (including applications by disciplined clubs to be reinstated to competitions or leagues); and (d) contractual disputes between players and clubs etc.

'Mark provides excellent, on-point advice and is great with clients.' - Professional Negligence

Legal 500 2025

"Mark Harper is an outstanding KC in all respects, wonderful with clients, unflappable in the face of adversity and a superstar advocate." - Partnership respondent UK Bar

Chambers & Partners 2024

"He is absolutely brilliant, intelligent, and has an excellent client-facing manner." - Banking & Finance respondent UK Bar

Chambers & Partners 2024

"Very measured in his approach and very approachable." - Banking & Finance respondent UK Bar

Chambers & Partners 2024

"Mark Harper is one of my go-to barristers. He is great to deal with, clients love him and he picks up things so quickly." - Company respondent UK Bar

Chambers & Partners 2024

"Very tenacious in court and fierce in cross-examination." - Commercial Dispute Resolution respondent UK Bar

Chambers & Partners 2024

"Mark really is an expert and has excellent client care. He knows the detail through and through and is a safe pair of hands." - Commercial Dispute Resolution respondent UK Bar

Chambers & Partners 2024

"Mark is a very good advocate and very pragmatic and collaborative." - Chancery respondent UK Bar

Chambers & Partners 2024

"Mark is an excellent KC in just about every respect. He is highly intelligent, clear, concise and practical, and a very effective advocate." - Chancery respondent UK Bar

Chambers & Parnters 2024

"Mark is well prepared, sensible and thorough and a very good advocate." Chancery respondent UK Bar

Chambers & Partners 2024

"Mark gets to the issue in complex matters very quickly. He is good with clients and for a silk he is approachable and I like working with him." - Professional Negligence respondent UK Bar

Chambers & Partners 2024

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Please contact us either by telephone: +44 (0)20 7415 7800 or email: clerks@3harecourt.com

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