Margery has been involved in taxation education and research for over 20 years. Following her time as head of Department (2001-2004) she was Director of the National Centre for Taxation Studies (NCTS) to August 2008. The NCTS arose from a multimillion Euro academic partnership between the University of Limerick (UL) and the Irish Revenue Commissioners (Revenue). Margery was instrumental in the development of both the BA (Hons) in Applied Taxation and the Diploma in Applied Taxation programmes, delivered in partnership with the Irish Revenue Commissioners, and was the course Director for these programmes from September 2004 to August 2008.

Other career activities include: Head of Department, Accounting & Finance (2001-2004); Course Director of the BA (Hons) in Law & Accounting (1994-2004); developed the Self-Assessment Quality Review Report of the Department of Accounting & Finance; developed the syllabus for the Irish Tax paper of the Chartered Institute of Management Accountants (CIMA) and was the National Examiner for a number of years. Research interests include Environmental Taxes, e-Tax, Tax Evasion and Avoidance, and Taxation Education.

Margery was also Chair, UL Revenue Joint Course Board, Sept 2004 - August 2008,(Joint with Revenue); Chair, NCTS Quality Assurance Board, Sept 2004 - August 2008; Chair, UL Revenue Year Four Advisory Board, Sept 2006 - August 2008; Chair, UL Revenue Final Year Project Committee, Sept 2006 - August 2008; Chair, Module Moderators Committee, Sept 2004 - August 2008; Chair, Department of Accounting and Finance Quality Team; Course Director, MSc In Corporate Governance 1999 - 2002; Member, UL Management Committee Sept 2001 - Sept 2004; Member, Academic Council Sept 2001 - Sept 2004; Member, KBS Management Committee Sept 2001 - Sept 2004; Member, KBS Academic Brief Committee Sept 2001 - Sept 2004; Member, Award for Excellence in Service to the Community 1999 - 2004; Member, College of Humanities Faculty Board; Member, BBS Course Board 2003 - 2004; Member, UL Quality Steering Committee 2001 - 2004; Member, MSc in Financial Services Course Board 2003 - 2004.