Former premier Najib Abdul Razak and his wife Rosmah Mansor have appointed lawyer David Matthews to represent them in an RM52.6 million suit filed by carpet businessperson Deepak Jaikishan, his younger brother Rajesh Jaikishan, and their company Radiant Splendour Sdn Bhd.

Last month, when the case was called before Kuala Lumpur High Court judge S Nantha Balan, the couple had yet to appoint lawyers for the case...