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Ruairi specialises in advising on restructurings (insolvent and solvent), insolvency matters (contentious and non-contentious), special situations and commercial litigation.
Ruairi regularly advises the various stakeholders in restructuring and insolvency matters and special situations including debtors, insolvency practitioners (e.g. receivers, liquidators, examiners), creditors, ad hoc committees, formal committees, directors, shareholders, investors and other stakeholders.
He also frequently advises clients on large scale transactions and solvent reorganisations that are implemented with the sanction of the Irish High Court including schemes of arrangement, takeover schemes, cross-border mergers and conversions and insurance portfolio transfers.
As part of his litigation practice acts for parties in complex commercial litigation and contentious insolvency matters.
Recent significant work includes advising:
- An ad hoc committee of bondholders, led by Attestor Capital, holding approx. $500m of Eurobonds on a petition to wind-up GTLK Europe and the ongoing work to secure repayment of the bonds.
- The Unsecured Creditors Committee appointed in the US Chapter 11 proceedings of Endo Group on all Irish law aspects of the restructuring including a scheme of arrangement under Part 9 of the Companies Act 2014.
- The Governmental Plaintiff Ad Hoc Group (comprising numerous US states and municipal authorities) on the US Chapter 11 and related examinership of Mallinckrodt plc in 2022 and advising the trustees of the Opioid Master Distribution trust in the further Chapter 11 and examinership proceedings in 2023.
- Elavon on the first cross border conversion into Ireland under the Mobility Regulations. See further details here.
- Andrew O’Leary and Ken Fennell, Interpath as receivers of 4D Pharma Ireland.
- M&G as senior lenders on the appointment of Nicholas O’Dwyer and Michael McAteer, Grant Thornton as receivers to a RGRE commercial real estate portfolio valued in the region of €300m and advising the receivers following their appointment.
- A client (confidential) in Commercial Court proceedings to remove a trustee and controlling director from two related corporate groups.
- Kieran Wallace, KPMG as examiner of Norwegian Air Shuttle ASA, Arctic Aviation Assets and other Norwegian Air companies on the multi-billion euro, cross border restructuring of the Norwegian Air group led through the Irish examinership process. See further details here.
- Ballantyne Re plc on its landmark Irish law scheme of arrangement to restructure US$1.65bn of New York law governed notes. See further details here.
- Advising on the Irish High Court aspects of numerous public takeover schemes of arrangement including advising Amgen on the $28bn acquisition of Horizon Therapeutics and Clayton, Dubilier & Rice LLC on its €3.1bn takeover of UDG Healthcare plc.
Ruairi lectures on the Law Society of Ireland’s professional training courses, is a member of the International Insolvency Institute, INSOL Europe and the Law Reform Sub-Committee of Restructuring and Insolvency Ireland. Ruairi was a member of the Insolvency Sub-Committee of the statutory Company Law Review Group and contributed to reports resulting in the Companies (Miscellaneous Provisions) (Covid-19) Act 2020 and proposals for the small company administrative rescue scheme (or SCARP).
2026 Legal 500 EMEA
"Ruairi Rynn stands out for his commercial, pragmatic approach and ability to cut through complexity with clear, results-driven advice. He is hands-on, highly responsive and a strong advocate, making him a trusted adviser I consistently rely on in insolvency matters." "Ruairi Rynn is very strong technically and a great manner with clients."
2026 Chambers Europe
"Ruairi stands out for his exceptional strategic insight and ability to manage highly complex restructuring and insolvency matters with confidence and clarity." "Ruairi is extremely professional and diligent, offers sound commercial advice and is always on hand to take a call and offer support." "Ruairi Rynn is very down to earth and accessible."
2025 Legal 500 EMEA
"Ruairi Rynn - strong commercially and technically in providing restructuring and insolvency advice in complex situations." "A tenacious, proactive solicitor who is always available. He is highly knowledgeable and provides strong, clear opinions and expert guidance."
2025 Chambers Europe
"Ruairi is technically amazing and provides solutions based on his many years of experience. He provides support at all levels and brings the clients along." "Ruairi is very good to work with and takes a common sense approach, which is clearly underpinned by very good technical knowledge."
2025 IFLR1000
“Excellent insolvency solicitor.”
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