John Lewis > Mourant > St Peter Port, Guernsey > Lawyer Profile


Work Department

Banking and finance, corporate, funds, insolvency and restructuring, insurance, financial services and regulatory.


John is a partner who has been advising the financial services industry in Guernsey, the UK and Australia for over 20 years. He specialises in corporate, banking and finance, and funds matters, and has substantial experience in trusts, pensions and insurance. Highlight deals: John has advised on: The Royal Bank of Scotland plc – £907m credit facility to Propinvest Group involving due diligence on 28 Guernsey entities; Aviva – insurance transfer scheme sanctioned by the Royal Court of Guernsey to give effect to Aviva’s reattribution of its inherited estate. Celsius Solutions PCC Limited – programme of preference share issues arranged by Barclays Capital.

What the directories say:
(IFLR1000, 2016) ranks John Lewis as a Leading Lawyer in Banking, Capital Markets, Financial Services Regulatory, Investment Funds, Corporate and M&A, Restructuring and Insolvency.
The “consistently very good” John Lewis is ranked as a Leading individual and recommended in Insurance and Commercial & Banking by (Legal 500 UK, 2015). “John Lewis is ‘knowledgeable and approachable'” (Legal 500 UK, 2015). (IFLR 1000, 2014) ranks John as a Leading Lawyer.
“One peer asserts that John Lewis is ‘someone I would turn to myself’,” (Chambers UK, 2013).


Trained Allen & Overy, London and Brussels, qualified into the financial services regulatory group; in-house experience with the ING Group for three years; moved back to private practice with Minter Ellison, Sydney; solicitor of the Supreme Court of England and Wales 1993 (currently non-practising); legal practitioner of the Supreme Court of New South Wales 1996 (currently non – practising); solicitor of the High Court of Australia 1996 (currently non-practising); advocate of the Guernsey Bar 2006.


John is a member of IPEBLA (International Pension & Employee Benefit Lawyers Association), on the committee of GAPP (Guernsey Association of Pension Providers) and a director and secretary of the Guernsey Rugby Association.


University of Birmingham (1989 LLB Hons); University of New South Wales (2000 LLM corporate, commercial and taxation law); Glasgow Caledonian University (2003 certificate in captive insurance management); Universite de Caen (2005 certificat d’Etudes Juridiques Francaises et Normandes).

Lawyer Rankings

Guernsey > Commercial property

At Mourant, commercial real estate lawyers advises corporates with interests in Guernsey property, as well as occupiers on a variety of matters, including sales and purchases, leasing and developments. The group consists of practitioners with dual-Guernsey and English law qualifications, enabling it to handle cross-border deals. In addition to pure commercial property work, Laura Bougourd also has expertise in the property aspects of corporate transactions; Alison Wood has a busy practice acting for landlords, tenants and developers of new residential and commercial properties. The group is overseen by managing partner John Lewis.

Guernsey > Corporate and M&A

(Leading individuals)

John LewisMourant

At Mourant, practitioners handle the spectrum of corporate transactions, including public and private M&A, where it advises targets, bidders, financial advisors and financial institutions. In terms of M&A, the team has experience in Guernsey, UK and cross-border deals, continuing to handle high-profile local M&A, particularly in the financial sector, where it is able to provide regulatory advice. It is also regularly instructed on reorganisations and is increasingly known for it’s ESG work. Frances Watson  is well-known for public and private M&A, and transactions involving family offices; John Lewis is oriented towards private M&A and corporate transactions for private wealth clients; John Rochester  is well versed in transactions involving real estate. Practice head Helen Wyatt  is another key name, and is able to utilise expertise in financial services regulations.

Guernsey > Insurance

(Hall of Fame)

John LewisMourant

Mourant fields ‘a strong insurance team with a good knowledge of how local laws tend to interact with laws in other jurisdictions‘. The group, which sits between the corporate and litigation departments, is most known for focusing on insurance sector M&A deals, but it is also well-versed in policy and coverage issues, as well as issues pertaining to captive insurance linked securities and life insurance. Helen Wyatt  heads the team and alongside John Lewis, is adept at transactional work. Gordon Dawes  is an insurance litigation expert, focusing on professional indemnity. D&I, coverage and regulatory enforcement claims; also areas of focus for counsel Chantal Barrett.

Guernsey > Banking and finance

(Hall of Fame)

John LewisMourant

The team at Mourant is commended by clients as ‘enormously responsive with prompt turnaround’. The practice spans the gamut of offshore banking and finance work and is most noted for real estate finance, but it is also adept at private equity transactions, and asset finance, where it stands out for aircraft financings. John Rochester  is known for advising major financial institutions on the offshore elements of their finance transactions. John Lewis  focuses on fund finance, refinancing and restructuring; ‘friendly, responsive, pragmaticFrances Watson  provides financial regulatory advice, as well as assisting with restructurings. Alana Gillies Ridout specialises in real estate finance. The team is led by Helen Wyatt .