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Erin practises a broad range of commercial litigation working in Appleby’s Dispute Resolution teams in the Isle of Man and Jersey. Having trained and qualified in the Isle of Man, Erin joined Appleby in October 2015 after gaining several years’ experience at a leading offshore firm in Guernsey.

She specialises in trust disputes and general trust advisory work including advising trustees and beneficiaries on a wide range of contentious trust and estates issues and regularly presents to trust service providers on the obligations of trustees. She also undertakes commercial litigation work including insolvency matters and advising regarding restraint orders in the Isle of Man under the Proceeds of Crime Act 2008.

Some recent examples of representative work include:

  • advising trustees in respect of potential disputes with beneficiaries;
  • advising trustees and beneficiaries in applications for rectification and/or rescission on the grounds of mistake;
  • advising beneficiaries in an application for a variation of trusts under the Variation of Trusts Act 1961;
  • advising trustees and executors in relation to applications to the Court for directions;
  • advising executors and administrators in relation to the contentious aspects of the administration of estates;

Work Highlights

  • A and B Limited v B and Otrs, representing the minor beneficiary and specified unborn beneficiaries of the C Settlement in relation to an application by trustees for the blessing of a momentous decision to enter into a Settlement Agreement which settled claims relating to the trust.
  • Mazzoleni v Summerhill Trust Company, assisting with an appeal by beneficiaries regarding a decision by a trustee not to appoint a trust protector;
  • Montpelier v Gittins, obtaining a proprietary injunction and then assisting with the claim of a Court-appointed receiver and manager regarding the ownership of companies. Continuing assistance with appeal.
  • Dominion v Montpelier, assisting with a successful application by a new trustee seeking an order requiring the former trustee to transfer trust asset and documents to the new trustee. The case included a successful application for indemnity costs against the former trustee.
  • McSween v Royal London, successfully defending an insurance company in a claim for negligent misrepresentation;
  • Clarke & Otr v RL360, application for strike out and / or amendment of the Defendants’ Defence in which it was successfully argued that the Defendants should be ordered to amend and clarify their pleadings;


Legal 500 UK 2024 again ranked Erin as a ‘Rising Star’ in Dispute Resolution, noting her “deep legal analysis of the most complex matters”.  Previous testimonials describe her as being “extremely brilliant and creative” and state ”it is a real pleasure working with her”, and describe her as having a “remarkable eye for detail and… extremely hard working. Her trusts expertise is outstanding. A go-to private client and contentious trusts partner of the future”.

She was also recognised by previous editions of Legal 500 for having “a great intellect” and for being “adept at taking in all angles for a practical solution”.

Qualifications & Education

  • Queen Mary, University of London (England)
  • University of California, Berkeley
  • College of Law, Bloomsbury (England)
  • BPP Law School, Leeds (England)
  • Called to the Manx Bar – January 2012
  • STEP Advanced Certificate in Trust Disputes – 2014

Memberships & Associations

  • STEP – Full member (TEP)
  • ConTrA (The Contentious Trusts Association)

‘Erin Trimble-Cregeen has been excellent! Fantastic communicator, very thorough, diligent exceptional resolution skillset.’

Legal 500

Related People

Mark Holligon

Managing Partner: Isle of Man

T +44 (0)1624 647 691
E Email Mark

James Gaudin

Managing Partner: Jersey

T +44 (0)1534 818 337
E Email James

Melissa Wong

Senior Associate: Isle of Man

T +44 (0)1624 647 602
E Email Melissa

Nichola Brennan

Counsel: Jersey

T +44 (0)1534 818 144
E Email Nichola

Giles Corbin

Consultant: Jersey

T +44 (0) 1534 818 352
E Email Giles

Paula Fry

Counsel: Guernsey

T +44 (0)1481 755 907
E Email Paula

Andrew Osychenko

Paralegal: Jersey

T +44 (0) 1534 818 146
E Email Andrew

Sam Williams

Partner: Jersey

T 01534 818235
E Email Sam

Michael Gradidge

Senior Associate: Jersey

T +44 (0) 1534 818 012
E Email Michael

Eloise Perry

Paralegal: Isle of Man

T +44 (0)1624 647 632
E Email Eloise

Sami Benbatoul

Associate: Isle of Man

T +44 (0)1624 647 620
E Email Sami

Phillip Cronje

Associate: Isle of Man

T +44 (0)1624 647 654
E Email Phillip

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