In the annals of the Celtic Tiger, it is easy for the success stories of the merely wealthy to get lost among those of the super-wealthy. Take, for example, Adrian Dunne, the Dublin based tax consultant and Michael Humphreys, a chartered accountant and Director at Davy’s in London. Together they presided over a squadron of companies, and made a range of substantial property investments while remaining relatively unknown. In 2006, their entity Mill Square got the go-ahead for a €65 million venture to build over 300 homes in Tullamore, Co Offaly, seen as a way of capitalising on former finance…