“Frank Maher is exceptional, he knows his field, and appreciates the importance of providing timely, sensible and practical advice.”
- Client testimonial, The Legal 500 2024
Frank is a regulation and insurance lawyer with over 40 years’ experience of advising law firms, their insurers, and other professions on anti-money laundering compliance, professional regulation, and professional indemnity insurance coverage disputes. He also advises on law firm and ABS authorisation and partnership issues, as well as in conduct and discipline, conflicts, data protection, and privacy.
Expertise
Frank advises law firms on professional regulation and, professional indemnity insurance.
Experience
- Frank advises law firms on professional indemnity and liability matters, managing claims, risk mitigation, and insurance coverage issues, and providing guidance on complex professional responsibilities and regulatory compliance.
- He acts for firms on disputes with insurers, and has a particular niche in advising on successor practice issues arising from law firm mergers and acquisitions, and firm closures, including several high profile examples.
Frank advises law firms on professional indemnity and liability matters, managing claims, risk mitigation, and insurance issues.
Experience
- Represented a law firm on multiple insurance coverage disputes, arbitrations and mediations with different insurers in respect of hundreds of claims by investors in failed development schemes valued at between £50m and £150m.
- Advised a law firm on a dispute with insurers declining to cover a £75m claim.
- Advised a law firm on insurance coverage issues, including block notification to insurers, arising from potential multimillion-pound claims over failed buyer-funded development schemes.
- Advised a law firm on insurance coverage issues following discovery of a rogue partner.
- Advised an Australian insurer of law firms on governance and claims management.
- Advised insurance broker on block notification of circumstances to insurers of possible commission claims following the decision in Johnson v FirstRand Bank.
- Advice to law firm on mitigating risks and insurance in high value Court of Protection appointments.
Frank advises on professional regulation and discipline matters, representing individuals and firms in investigations, hearings, and enforcement proceedings.
Experience
- Represented a partner in a US law firm on regulatory aspects of ‘MeToo’ allegations.
- Advised US law firm on regulatory aspects of placing a US partner in the UK in conjunction with other Keystone lawyers advising on tax, immigration and employment.
- Advice to several leading law firms including insurance practices and others on regulatory compliance for conduct of litigation following the decision in Mazur v Charles Russell Speechleys.
- Represented law firm on successful conclusion to SRA investigation into allegations of serious accounting breaches.
- Advice to leading law firm on conflicts and professional regulatory compliance following confidentiality breach arising from ‘sting’ operation.
- Review of leading international firm’s engagement letters, including advice on limiting liability.
Frank advises on anti-money laundering and data protection compliance, assisting clients with regulatory adherence, risk assessments, policy implementation, and handling sensitive information in line with legal and industry requirements.
Experience
- Audit of many leading UK and US based law firms under regulation 21 of The Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017. Ad hoc support to a wide variety of law firms on anti-money laundering and financial crime compliance issues.
- Advice to FTSE 100 property developer on ad hoc anti-money laundering and related issues.
- Drafting firmwide risk assessment.
Frank advises law firms, their insurers, and other professions on anti-money laundering compliance, professional regulation, professional indemnity insurance coverage disputes, ABS authorisation, partnership issues, conduct and discipline, conflicts, data protection, and privacy.
Experience
- Frank advises law firms on professional indemnity and liability matters, managing claims, risk mitigation, and insurance issues, and providing guidance on complex professional responsibilities and regulatory compliance.
- Represented a law firm on multiple insurance coverage disputes, arbitrations and mediations with different insurers in respect of hundreds of claims by investors in failed development schemes valued at between £50m and £150m.
- Advised a law firm on a dispute with insurers declining to cover a £75m claim.
- Advised a law firm on insurance coverage issues, including block notification to insurers, arising from potential multimillion-pound claims over failed buyer-funded development schemes.
- Advised an Australian insurer of law firms on governance and claims management.
Please note: The experience list above may include examples of work completed prior to joining Keystone Law.
Recognition
Recognised by Chambers UK for Professional Negligence and Professional Discipline 2025–2027
Recognised by The Legal 500 as a Leading Individual in Professional Negligence 2025– 2027
Recognised by The Legal 500 for Insurance litigation: for policyholders 2027
Chambers UK Top-ranked Individual for Professional Negligence (Liverpool and surrounds) and Professional Discipline 2024
Association of Partnership Practitioners (and former committee member 2010–2016)
The (US) Association of Professional Responsibility Lawyers (and former Director)
AMLP Forum (The Association of Financial Crime Prevention Professionals)
Association of Regulatory and Disciplinary Lawyers
Co-author of Risk Management in Law Firms: Strategies for Safeguarding the Future (International Bar Association, 2014)
Co-author of The Compliance Calendar Toolkit for Law Firms (Ark Group, 2014)
Risk and Compliance for Law Firms in a Changed World (Ark Group, 2011)
Co-author of The Money Laundering Reporting Officer’s Handbook (Legalease, 2004)
“Frank is a terrific lawyer.”
Chambers UK 2027
“Frank Maher is a subject matter expert who is very well respected, and is at the forefront of an ever-changing world.”
Chambers UK 2027
“Frank is a safe pair of hands and is someone you would want to work alongside you.”
Chambers UK 2027
“Frank Maher is an industry specialist, well known among his client community. Frank adopts a welcoming approach combined with a tenacious application.”
The Legal 500 2027
“Frank Maher and the team continue to be industry leaders in their specific field. A trusted and effective team.”
The Legal 500 2027
“Frank Maher is a true expert in his field; he provides the best, thorough, and commercial advice”
The Legal 500 2026
“Frank Maher is a bright, tenacious, and diligent lawyer who has created a fantastic reputation.”
The Legal 500 2026
“We have worked with Frank Maher for several years and he can always be relied upon for his prompt, sound and clear advice. His responsiveness is excellent and very much appreciated when we have urgent queries.”
The Legal 500 2026
“I have worked extensively with Frank Maher in the context of SRA and AML compliance – he is very knowledgeable in his area of practice and provide commercial and pragmatic advice.”
The Legal 500 2026
“Frank Maher and Sue Mawdsley, who are both brilliant”
The Legal 500 2026
“Frank and the team at Keystone are at the very top of their chosen niche. They have assumed this position through their knowledge and service delivery”
The Legal 500 2026
“Frank Maher is extremely knowledgeable and incisive. He is our go-to for any issue relating to professional discipline and regulatory matters”
The Legal 500 2026
“Frank Maher is simply outstanding. His depth of knowledge is exceptional, and he consistently delivers advice that is both legally rigorous and commercially pragmatic. What sets Frank apart is not just his expertise, but also his unwavering commitment to client care. At his level, that kind of responsiveness and dedication is rare — and deeply appreciated”
The Legal 500 2026
“What sets Frank apart is not just his expertise but also his unwavering commitment to client care”
Chambers 2026
“Frank is very knowledgeable on legal services regulation”
Chambers 2026
“Frank Maher is simply outstanding. His depth of knowledge is exceptional, and he consistently delivers advice that is both legally rigorous and commercially pragmatic”
Chambers 2026
“Frank Maher is a good lawyer who knows his stuff.”
Chambers 2026
“Because Frank deals with matters so comprehensively, we are able to make good and informed decisions.”
Chambers UK 2025
“I would instruct him if my career was on the line.”
Chambers UK 2025
“Frank is very quick to respond.”
Chambers UK 2025
“Frank is an exceptional adviser.”
Chambers UK 2025
“His knowledge and understanding of the area are extensive and his advice is practical and to the point.”
Chambers UK 2025
“He's so incredibly switched on and knows policy coverage inside-out and upside down.”
Chambers UK 2025
“Frank Maher is a really safe pair of hands.”
Chambers UK 2025
“Frank is second to none and couldn't be recommended highly enough.”
Chambers UK 2025
“Outstanding capabilities in handling professional discipline matters for lawyers and law firms.”
Chambers UK 2024
“Frank Maher’s ‘advice is always pragmatic.”
The Legal 500 2024
“Real expert in the area, balancing deep subject matter expertise with a broad understanding of market practice and an appreciation of the practical implications of his advice – go-to adviser in this area.”
The Legal 500 2024
Frank qualified as a solicitor in 1983. Prior to joining Keystone Law in 2024, he worked at the following firms:
- Legal Risk LLP
- Weightmans
Frank's latest news and resources
Solicitors’ Professional indemnity renewal 2025: the implications of block notifications
Frank Maher
How to deal with unrepresented parties
Frank Maher
How solicitors’ firms can prepare for the renewal of professional indemnity insurance
Frank Maher