Oliver Hallam

A full-time mediator, Oliver works nationwide and internationally, drawing on his legal background. He trained as a solicitor at Allen & Overy LLP, a Magic Circle firm, and then spent ten years at Wrigleys Solicitors, a top-tier firm for private wealth matters, where he was a partner in the private client team. With over a decade of mediation experience, Oliver has successfully resolved a wide range of disputes including those involving trusts, tax, company, partnership, property, employment, probate and elder law. He is particularly known for his work in private wealth, family business and sport disputes. Sport disputes include football, elite equestrianism, historic and classic motorsport. Oliver’s psychotherapeutic approach, combined with his legal expertise, enables him to help parties navigate complex, sensitive and often highly emotional conflicts. Oliver is a practitioner of non-evaluative mediation, empowering parties to find their own solutions while challenging assumptions through careful reality testing. He mediates in person, online and by telephone, offering bespoke processes tailored to each case to ensure parties feel heard. Oliver also offers co-mediation, working alongside fellow CEDR mediator Julia Burns to help resolve complex, multi-party disputes involving families, trusts, estates and family businesses. This collaborative mediation model manages the challenge of multiple parties in separate rooms, maintains momentum and brings complementary perspectives to even the most challenging negotiations. Co-mediation is particularly effective in high-value private wealth, inheritance, trust and probate disputes, where the logistics and emotions of multiple parties can stall progress.