Disputes and Expert witness We offer expert witness services and represent clients at arbitration and independent expert and at courts and tribunals. We also offer advice on Alternative Dispute Resolution (ADR) options. Matters that may require expert witness services include family and matrimonial proceedings, breach of contract, professional negligence and partnership matters. S18 valuations relating to dilapidations claims are provided, often working in conjunction with our building surveyors. In all cases, we offer initial advice to parties contemplating proceedings or negotiations for internal purposes.