Leonard Sainer (12 October 1909 – 30 September 1991) enjoyed two very successful careers, as a solicitor and a retailer.
One of his previous clients, Charles Clore, had been so impressed by him that he transferred his legal work to the new firm.
Sainer worked closely with Clore in developing his retail activities, eventually helping him to set up Sears plc.
Following the death of Titmuss, Sainer became senior partner and remained so until 1978, when he became a consultant.
It sponsors several charitable activities, such as the Leonard Sainer Centre in Ilford for children with special needs, and scholarships each year at the UCL Faculty of Laws.