Associated General Contractors of Mass. elected William Morash of Shawmut Design & Construction, Boston, as its chairman of the board for the 2008 - 2009 association year.   Other new officers and directors,  include vice chair Timothy Bonfatti, RF Walsh Project Management, Boston; treasurer John Lauring, Lauring Construction, Worcester; and John Riley, Walsh Brothers, Boston. Robert Lizza, Suffolk Construction, Boston and Domenic Tiberi, Barr & Barr, Framingham were also elected to the board.  Kevin Jones, Gilbane Building, Boston has been designated as a new appointed director through 2009.