There has been a shake-up in the boardroom of one of Ireland’s best-known family owned housebuilders, the Cosgrave Group. The move follows the settlement of a shareholder dispute between Cosgrave family members earlier this month. Three experienced accountants have been appointed to the board of two of the key companies in the group representing three separate family interests.  Brendan Foster, a former partner in Grant Thornton and past president of the Dublin Chamber of Commerce, has joined the board to represent William Cosgrave.  George Maloney, a consultant with RSM Ireland and an experienced accountant, has joined the board to represent…