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Nin  Ritchie

Nin Ritchie 

Group Partner* | Guernsey

Dispute Resolution

  • Whenever there is a CI nexus, I will always go to Nin.
    Legal 500 (UK) 2023
  • 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 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
  • 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
  • She works fast and delivers high quality work within very tight turnaround times.
    Client feedback
  • Very helpful and professional in her approach
    Client feedback
  • Approachable, good humoured and very efficient.
    Client feedback
  • Nin is an excellent lawyer who provides a great service.
    Chambers UK 2023
  • 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
  • is excellent at presenting complicated concepts in a digestible manner.
    Client feedback
  • 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 is one of the most useful and progressive initiatives in the industry"
  • She is very professional and thorough. I have great faith in her.
    Chambers and Partners 2022


Nin is a Group Partner in the Dispute Resolution team in Guernsey. She is a well established dispute resolution practitioner with 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 cross-departmental risk and regulatory team 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.

"I help clients through complex situations and, on occasion, tumultuous times in the most pragmatic, commercial and careful way."


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.


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 is recommended by Chambers and Partners for her work on contentious regulatory matters, and as an associate to watch. She is named as a 'Rising star' in the Legal 500 2023 guide.


  • Institute of Directors
  • Guernsey International Legal Association
  • Women's White Collar Defense Association
  • Founder of the Powerhouse Book Club
  • Female Fraud Forum

*admitted in England and Wales

* Business Assistant
Debbie Anderson

Debbie Anderson

My services
Director & Shareholder Disputes

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 simply '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.

Dispute Resolution

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. We know that there are many different ways a dispute can be resolved and work closely with our clients to understand every aspect of their business, priorities and goals. This allows us to find the best way forward for our clients and to advise on the commercial implications of a dispute, ensuring the process remains as stress-free as possible. Our approach is practical, responsive and tailored to the client's interests. Our expertise and reputation means we're first choice for a range of clients, including banks, trust companies, high net worth individuals and top law firms.

Risk & Regulatory

Collas Crill's multi-disciplinary approach to providing Risk & Regulatory services ensures that every aspect of our clients' businesses is covered. By drawing on the skills and experience of a highly experienced team of lawyers with expertise from across the firm, we are able to deal with all legal compliance issues that could affect your business, whether contentious or non-contentious. The assistance we are able to provide ranges from strategic matters to specific operational issues.

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Promotions at Collas Crill

Collas Crill has made a number of promotions across its Channel Island and Caribbean offices. In the Channel Islands, Guernsey-based Cerisse Fisher and Nin Ritchie have been...

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Event 5 Apr 2023

Directors' Duties Conference

Collas Crill invites you to join us at our Directors' Duties Conference, where the focus will be on Shareholder Activism.  Join Partners David O'Hanlon, Wayne Atkinson and...

Event 5 Apr 2022
Past Event

Reporting suspicion

Executive Director of Collas Crill Compliance, Sandra Lawrence, and Of Counsel Nin Ritchie are speaking at the GTA University Centre's Compliance CPD Series. There are ten...

Event 9 Mar 2022
Past Event

2022 Financial Services Compliance

Of Counsel Nin Ritchie and Collas Crill Compliance's Executive Director Sandra Lawrence will be speaking in the School of International Finance Services (SIFS) 2022...

Event 9 Sep 2021
Past Event

Financial crime risks

Executive Director at Collas Crill Compliance Limited Sandra Lawrence and Collas Crill Of Counsel Nin Ritchie will be presenting on Guernsey’s strategic response to...

Event 15 Dec 2020
Past Event

Regulatory update

This one-hour online live webinar forms part of the 2020 Economic Crime & Compliance eCPD Seminar Series. The 2020 Economic Crime & Compliance eCPD Seminar Series...

Event 5 Nov 2019
Past Event

Collas Crill Conference

What do you do when the unexpected hits?  Dawn raids, document disclosure, data breaches and global crises may well be out of a director's control but can affect a company...

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