Roisin is the principal at Duffy Tax & Business Advisory Limited in Dundalk, a role she assumed in 2017 after a career spent in accounting firms in Dundalk and Dublin, including UHY Farrelly Dawe White Limited and PriceWaterhouseCoopers. She graduated with a degree in Accounting and Finance from Dublin City University in 1997 and earned a Masters in Business Studies from the same institution a year later. Roisin has been an associate of Chartered Accountants Ireland since 2000 and became a fellow of that body in 2010. She sat on the Audit, Finance and Risk Committee of Dundalk Institute of Technology from 2013 until 2017 and has served as chair of the Audit Committee on the Cavan Monaghan Educational Training Board for the last four years. Roisin is the winner of UHY Forum 2013's Best Participant at the international seminar for members of UHY International, an international association of independent accountancy firms comprising members in 87 countries.