Cain Ormondroyd practices in public law, with a particular focus on heavyweight land valuation disputes and contentious planning appeals. He is an acknowledged expert in the area of rating and the council tax, being one of the editors of Ryde on Rating and also the author of The Rating and Council Tax Pocketbook.

Cain acts for a broad range of clients including major public companies, developers, central and local government bodies. He is a member of the Attorney General's 'A' Panel of specialist counsel and is often instructed by HMRC. He appears most frequently at hearings in the Valuation Tribunal, Upper Tribunal (Lands Chamber) and High Court and at public inquiries, but has appeared in and accepts instructions to appear in all courts from the magistrates' court up to the Supreme Court.