David was born in Aberdeenshire and educated at Aberdeen University, graduating in 1979. After serving his Apprenticeship in Aberdeen, he joined the then Firm of Condie Mackenzie and Company in Perth in 1981, becoming a Partner in 1985. He became a Partner in Blackadders following the merger of the two Firms in October 2014. Throughout his career he has been involved in all aspects of Chamber Practice with particular emphasis on Trusts and Executry work, Inheritance Tax Planning and Powers of Attorney. For many years he was Vice Chairman of the Perthshire Solicitors Property Centre.