Sheila Collins, chair of housing association Stonewater, is to step down after seven years, with the Leicester-based organisation also appointing a chief investment officer in a newly created role. Collins has elected to leave her post after seven years to be succeeded by former Berkeley divisional chairman Angus Michie. Michie is currently on Stonewater's board as chair of homes and development challenge and assurance panel, chair of Stonewater Developments and chair of Stonewater Commercial.