Steve Walker, CEO of the AmicusHorizon Group, is to step down at the end of the year.Mr Walker joined in October 2008 when the Group was under regulatory supervision.On his appointment, he was asked by the board to amalgamate the then group structure of six housing associations to form AmicusHorizon Ltd, and introduce a new resident led governance structure.He was also required to implement an organisational review and improve the control framework.Under his direction, AmicusHorizon has become a ...