“We see ourselves as becoming the largest international practice in the Irish market. That’s our stated ambition, and that has always been our ambition.” Two and half years after international law firm Addleshaw Goddard (AG) took domestic firm Eugene F Collins down the aisle, the seemingly mild-mannered Mark Walsh is in bullish form about the union and the future of the practice.  Why wouldn’t he be? Business is thriving. And Walsh, as head of Ireland at AG, has overseen that growth and has the numbers to prove it.  Headcount at the Dublin office has jumped by over 20 per cent…