Llewelyn served as a working group member for the development of the Pacific Association of Supreme Audit Institutions (PASAI) Performance Audit Manual and the Strategic Management Operational Guidelines (SMOG). These two resources were created to provide assistance to over 25 countries as part of PASAI's Pacific Regional Audit Initiative, which aims to raise public auditing in the Pacific region to uniformly high standards. Recognizing her abilities, PASAI recommended Llewelyn to be an instructor for the SMOG training held in Nadi, Fiji.Llewelyn graduated with honors from the University of Guam with a Bachelor of Business Administration in Accounting. Llewelyn is an active member of the Association of Government Accountants--Guam Chapter. She also served as the chairperson and co-chairperson on several committees. Through these efforts, the Guam Chapter earned national recognition for its Community Service contributions. Llewelyn is also a member of the Institute of Internal Auditors and the Association of Certified Fraud Examiners.