Nin is a Guernsey Advocate and a well established dispute resolution practitioner. She has a loyal client base comprising finance services businesses and those from other regulated sectors, spanning risk and regulatory, corporate disputes and contentious trust matters many of which have multi-jurisdictional/international elements.
She leads the risk and regulatory team in Guernsey to deliver a seamless offering to clients with complex and varied needs. Nin works closely with the Jersey-based risk and regulatory team to ensure that clients with a presence across the Channel Islands are able to receive a blended Channel Islands service.
Experience
Nin is known for her work in regulatory compliance and enforcement, financial crime, risk and governance. Clients rely on her skills, experience, calm manner and technical expertise to provide advice and guidance on complex legal matters with high risk factors and potentially devastating outcomes. She is trusted by her clients to provide accurate, commercial and time sensitive advice.
Nin has a strong sanctions practice that extends across transactional, advisory and contentious matters and is an expert in this legally complex and important developing area of practice. Nin has an established international network where clients require cross-jurisdictional sanctions advice.
Nin leads, and regularly presents at, an industry Risk and Regulatory forum created for leading individuals from a cross section of the finance sector to share information from a commercial and legal perspective. The event was praised by one client as 'one of the most useful and progressive initiatives in the industry.' She regularly speaks at local conferences, and writes, on regulatory matters.
Recent matters include:
Representing individuals in a regulatory enforcement matters in the Guernsey fund and trust sectors;
Advising on a financial crime matters in respect of the determination of provenance of funds;
Advising on client regulatory obligations in respect of a new target market involving complex structuring; and, developing an appropriate risk based compliance framework; and
Providing sanctions advice in respect of designations.
Background
On leaving school, Nin qualified as a nurse and worked in medical research in London.
She returned to Guernsey in 2002 where she spent eight years within the banking division of the Guernsey Financial Services Commission. During this time she obtained a law degree from Nottingham Law School and completed the Legal Practice Course at the College of Law, Bloomsbury.
She joined Collas Crill as a trainee in 2010 and qualified into the dispute resolution team.
Nin was called to the Guernsey Bar in December 2025.
Awards
Nin is recommended by Chambers and Partners for her work on contentious regulatory matters, and as an associate to watch. She was named as a 'Next Generation Partner' in the Legal 500 2026 guide.
Memberships
Institute of Directors
Guernsey International Legal Association
Women's White Collar Defense Association
Founder of the Powerhouse Book Club
Female Fraud Forum
† not a member of Collas Crill LLP in Guernsey
"I help clients through complex situations and, on occasion, tumultuous times in the most pragmatic, commercial and careful way."
Nin Ritchie is unquestionably the best sanctions and anti-money laundering lawyer in Guernsey.
Legal 500 (UK) 2026
Very helpful and professional in her approach.
Client feedback
Nin leads one of the most useful and progressive initiatives in the industry.
Nin Ritchie is my go to sanctions and compliance expert at Collas Crill. She is supremely clever and has a maturity in her approach to clients that is very much appreciated. Her ability to collaborate is also a key skill.
Legal 500 (UK) 2023
She is very professional and thorough. I have great faith in her.
Chambers and Partners 2022
Nin Ritchie is at the top of her game. She is a calm, steady pair of hands and can efficiently get to grips with idiosyncratic matters. I continue to be very impressed with her legal knowledge and commercial acumen.
Legal 500 2022
I am always incredibly impressed whenever we get the chance to work together.
Approachable, good humoured and very efficient.
Client feedback
Nin is an excellent lawyer who provides a great service.
Chambers UK 2023
She works fast and delivers high quality work within very tight turnaround times.
Client feedback
Excellent at presenting complicated concepts in a digestible manner.
Client feedback
An individual who stands out is Nin Richie.
I have found Nin to be an extremely approachable individual and very much someone that can be considered a ‘go to’ person when it comes to a myriad of questions that might require legal, regulatory, risk & governance consideration.
Client feedback
Nin Ritchie is an incredible lawyer. Her insight, commerciality and legal acumen mean that she is a trusted pair of hands for sanctions and regulatory litigation work.
Legal 500 2024 (UK)
I have engaged Nin on a number of other issues that required expert legal advice. Nin is my go to resource when we need legal assistance with complex and high priority regulatory and risk related matters.
Client feedback
Whenever there is a CI nexus, I will always go to Nin.
Legal 500 (UK) 2023
Nin is the go-to partner for financial sanctions and regulatory matters, which requires a combination of technical expertise and deep understanding of the Guernsey regulatory landscape.
Legal 500 (UK) 2026
Nin has always been willing to jump on a call to brainstorm a particular issue, irrespective as to whether the firm is subsequently instructed – as a general counsel, that is invaluable.
A ‘go to’ person when it comes to a myriad of questions that might require legal, regulatory, risk & governance consideration.
Client feedback
Nin combines deep subject matter expertise with a commercial perspective on handling complex regulatory issues. When Guernsey issues arise, she is always my first call.
Legal 500 (UK) Guide 2026
Expertise
In regulatory disputes there are often fine lines between the usual wrangling with the regulator and something more serious – by matching our mix of experienced contentious and non-contentious lawyers to the particular problem at hand, we achieve better and more efficient outcomes.
As regulatory experts in the British Virgin Islands, the Cayman Islands, Guernsey and Jersey we frequently act on contentious matters and can leverage our experience to help clients achieve the highest regulatory standards and avoid common pitfalls.
We combine pragmatic risk assessment with rigorous legal advice and compliance guidance to reduce exposure and protect reputation, while drawing on our cross-jurisdictional knowledge to design remediation strategies, negotiate with regulators and, where necessary, litigate effectively.
Our collaborative approach ensures clients receive clear, actionable legal advice that balances regulatory obligations with commercial realities, delivers timely, proportionate solutions and supports remediation plans, helping prevent escalation into more serious enforcement action and preserve business continuity.
Our dispute resolution specialists collaborate seamlessly with our corporate advisory and banking teams across jurisdictions to advise multinational corporations, trust companies, banks, funds, insurers, governments and directors.
We provide a global perspective, working closely with our clients to ensure that they are best placed to respond to customer issues, fraud risks, rapidly changing market conditions and regulatory demands.
Thanks to the depth of our experience and the resources of our team, we've acted on some of the largest pieces of litigation brought against directors offshore.
We're well placed to deal with the 'bet the farm' proceedings that can occur in these type of disputes and have represented parties involved in intra-company disputes, including executive, non-executive and independent directors, majority and minority shareholders, companies and liquidators. We understand that shareholder disputes are often not black and white and our team finds innovative and commercial alternatives to those which the Court may offer – taking a collaborative approach with our clients to ensure that the right result is achieved.
It is a fact of life that all regulated businesses today face ever increasing pressure in the areas of compliance, regulation and risk management. Not only are our businesses required to comply with regulations and laws imposed within each jurisdiction, we need to be alert to impending changes in the UK, EU and elsewhere which could have an impact on the way we operate.
We provide contentious and non-contentious advice and support, primarily for local financial services businesses, in complying with sanctions and anti-money laundering regulations. Our work ranges from initial strategic advice, liaison with stakeholders including regulators, clients and investigations and prosecution authorities – to litigation, where required.
We live in an increasingly contentious world. When your business is involved in any kind of legal dispute it's crucial to work with lawyers who are hands-on, cost-effective and flexible enough to respond quickly and intuitively to your unique situation and needs.
Regulation and legal risk management are placing increasing burdens on companies and businesses in terms of time, costs and resources, and the consequences of getting this wrong can be severe.
We can assist with all regulatory and compliance issues in Jersey, Guernsey, BVI and Cayman including:
anti-money laundering and proceeds of crime legislation
FATCA and CRS reporting
licensing
economic substance
beneficial ownership
sanctions
tax information exchange requests
AIFMD
Additionally we can help with regulator investigations and visits, enforcement and remediation including representation before regulators, tribunals committees and courts. We have an excellent record in defending corporates and their directors and officers in regulatory proceedings.
Please view our Regulatory page for more information.
Offshore vehicles are used for a huge range of purposes either standing alone or as part of large multi-jurisdictional structures.
Our highly commercial team specialises in advising clients on the most effective uses of such vehicles and their on-going operation, including normal and cellular companies as well as foundations, unit trusts, limited partnerships, limited liability partnerships, segregated portfolio and restricted purpose companies.
We are able to advise what jurisdiction among the 'Big Four' that we advise on will best suit our client's needs and regularly advise on solvent restructuring by way of merger, consolidation, continuation or balance sheet optimisation as well as court based corporate procedures such as schemes and plans of arrangement.
With our mix of non-contentious and litigation restructuring specialists, Collas Crill offers the unique advantage of having being able to provide a team to seamlessly take a transaction from start to finish.
Disputes between directors can threaten the stability and governance of a company. We advise boards, individual directors, shareholders and stakeholders in contentious matters involving boardroom deadlock, removal or appointment of directors and conflicts of interest.
Drawing on our corporate, regulatory and dispute resolution expertise, we provide strategic advice in navigating internal power struggles and fiduciary issues. Our cross-border teams work cohesively to resolve disputes efficiently, protect business continuity and mitigate reputational risk.
Whether acting in private companies, joint ventures or complex corporate structures, we help clients manage director-level disputes with clarity and confidence.
Directors are legally obliged to act in good faith, exercise independent judgment, and promote the best interests of the company.
Our offshore regulatory lawyers regularly provide expert legal guidance to directors as to their duties in offshore jurisdictions and corporate governance frameworks, as failure to comply with these expected duties potentially results in significant personal liability for directors.
Our experienced team advises on fiduciary responsibilities, risk mitigation, and regulatory compliance to ensure directors meet their obligations with confidence. Whether you're forming an offshore entity or navigating complex corporate challenges, we can offer trusted, practical solutions tailored to your needs.
Regulation and legal risk management are placing increasing burdens on companies and businesses in terms of time, costs and resources, and the consequences of getting this wrong can be severe. We can assist with all regulatory and compliance issues in Jersey, Guernsey, BVI and Cayman including:
Anti money laundering and proceeds of crime legislation
FATCA and CRS reporting
Licensing
Economic substance
Beneficial ownership
Sanctions
Tax information exchange requests
AIFMD
Additionally we can help with regulator investigations and visits, enforcement and remediation including representation before regulators, tribunals committees and courts. We have an excellent record in defending corporates and their directors and officers in regulatory proceedings.
We are used to working as part of a multi-jurisdictional team, capable of reacting and responding quickly to urgent requests for assistance with locating and freezing assets.
As sophisticated defendants become more adept at dissipating assets, we've been involved in cases that created new law in the Channel Islands in relation to a party's ability to trace assets and recover their losses. With their ability to deal with complex issues, the team deliver clear, commercial advice on the availability and likely success of recovery methods.
With specialists across not only Guernsey and Jersey but also in the British Virgin Islands and Cayman Islands, services provided by our fraud and asset tracing lawyers include:
Immediate applications for freezing and search orders
Expedited Norwich Pharmacal order and disclosure proceedings
Asset-tracing across trust structures and corporate vehicles
Coordination with criminal and regulatory investigations where overlap exists.
Our international footprint lets us deliver prompt, all‑round legal support precisely when clients need it most.
