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Rosie Duplessis

Chartered Legal Executive

Rosie is a member of the firm’s Dispute Resolution Team based in Brighton & Hove. She believes in giving pragmatic and direct advice, with a focus on the benefits of early mediation and alternative methods of resolution.

Clients – Dispute Resolution

Rosie works with individuals who find themselves either the subject of, or need to initiate, a Contentious Probate dispute and also business and commercial clients with contractual / corporate disputes.

Dispute Resolution experience and approach

Rosie takes time to be empathetic with her clients but with a pragmatic approach. Rosie has an excellent track record in ADR and negotiated settlements outside of issued proceedings.

Dispute Resolution expertise

  • Contentious Probate and Trust Disputes;
  • Inheritance (Provision for Family and Dependants) Act 1975 cases
  • Negotiating with/removal of non-performing Executors
  • Will Validity Claims
  • Commercial contractual disputes; including breach of contract, failure to pay and Director disputes
  • Professional Negligence
  • Landlord and Tenant disputes.

Rosie’s Work


Successful settlement in a Will Validity case: The elderly Deceased had made several amendments to her Will over a relatively short period of time. In each instance her gardener received a larger share of the Estate. In the final Will, he was left the Estate in its entirety. Rosie’s clients (long term neighbours and friends of the Deceased) argued Undue Influence, with considerable third-party evidence to support this claim. With a focus on costs and having determined that the ‘middle’ Will was more likely to be upheld; Rosie and her clients settled for c. 50% of the sale price of the Estate property. This was achieved without the need to issue formal proceedings.



Successful recovery of a six-figure sum: The sums were due to Rosie’s client under a group marketing contract, under which her client’s company provided various marketing services to the group. A dispute arose over the ongoing relationship and, as a result, Rosie’s client became the subject of non-payment of various invoices. After considerable communications with the group, Rosie achieved substantial recovery and facilitated her client a clean break from the group, and allowing the client to mover her business forward.