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Simon Lellouche

Solicitor

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About

Simon Lellouche is a skilled solicitor with a particular focus on private wealth, pensions, and commercial disputes. Simon has successfully represented clients in high-value, complex cases, including a £10M dispute over negligent tax advice and a £7M professional negligence claim for a bank. He is recognised as a Key Lawyer in the Private Wealth Disputes team in the 2025 Legal 500 rankings and again in the 2026 rankings for his work in Pensions Dispute Resolution, reflecting his broad expertise across both trust and pensions disputes.

He has experience advising on pensions litigation, including rectification claims, mistake applications, and professional negligence matters. He has also managed a range of commercial disputes, such as contractual disagreements and judicial reviews. Fluent in both English and French, he provides strategic, client-focused advice to a wide range of clients, including international High-Net-Worth Individuals and families.

With a proven ability in alternative dispute resolution and mediation, Simon is known for his innovative and pragmatic approach, resolving conflicts quickly and effectively. His work has been recognised by the courts for effective case handling.

Experience

  • Bank: Advising trustees and beneficiaries on a £7 million professional negligence claim involving multiple advisers.
  • Pension scheme: Representing a scheme in a rectification claim to equalise retirement dates and liaising with claimants to secure crucial additional evidence.
  • Investment specialists: Acting in a £10 million commercial dispute, advising clients on claims of negligent tax advice.
  • Pension scheme: Providing strategic advice on potential claims following a £3 million loss in the wake of the LDI crisis, assessing legal options and guiding trustees.
  • PPE importer: Successfully negotiated and settled a contractual dispute with a wholesaler customer, avoiding costly litigation and achieving a favourable outcome for the client.

Credentials

  • Admitted as a solicitor: England & Wales (2023)
  • LLB Law (2019), LPC LLM, Cardiff University (2020)
  • Member of the Contentious Trusts Association
  • Member of the Association of Pension Lawyers

Areas of expertise

Office

“Simon Lellouche - very hardworking and great attention to detail. A good person to have on your team to make sure nothing ever gets missed.”

Legal 500 2026

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