The demise of the no-frills insurer formerly owned by Cavan businessman Sean Quinn remains one of the most spectacular in Ireland’s corporate history.  Quinn Insurance Limited (QIL) spent years aggressively pursuing market share but came crashing down a decade ago when a €1.1 billion shortfall was discovered in the accounts. Lacking the technical reserves required to cover prospective insurance claims, the High Court stepped in to appoint Michael McAteer and Paul McCann of Grant Thornton as joint administrators to the company. As business stories go this one has been told and retold. But it is not over. In 2012, McAteer…