This book is an invaluable guide for those providing expert evidence on valuations of commercial properties - including civil actions, rent review arbitrations, lands tribunal cases and rating appeals. The object of the book is to provide the commercial property valuer with a detailed introduction to providing expert evidence in a litigation context, the rules, requirements and the pitfalls for the unwary. Particular trouble has been taken to emphasise the need for quality evidence based on relevant experience which is objective, unbiased, independent, and of sufficient quality to resist challenges before the courts, tribunals and arbitrators. This handbook will help the practitioner start off on the right course and provide forewarning of the issues which he or she is likely to face, leading to greater professional awareness and to higher standards of valuation expert evidence in all commercial property fields.