 
    
    
AmTrust Financial Services is expanding its E&S division, introducing new lines and consolidating its primary, excess and environmental products into a new brokerage casualty group, to be led by Brian Mulvihill.
In
 
    
    
AmTrust Financial Services is expanding its E&S division, introducing new lines and consolidating its primary, excess and environmental products into a new brokerage casualty group, to be led by Brian Mulvihill.
In