Andrew Wallin joined Sweeten CPA in July 2017. Before beginning his career in public accounting, Andrew served in the United States Navy on a nuclear submarine based out of Pearl Harbor, Hawaii. He graduated in 2007 from the University of California, Santa Barbara with a Bachelor of Arts degree in Business Economics with an Emphasis in Accounting.  He also earned a Master of Science in Taxation from Golden Gate University in San Francisco in 2015. He is a member of the American Institute of Certified Public Accountants, California Society of Certified Public Accountants, and the Texas Society of Certified Public Accountants, as he worked in both California and Texas prior to joining our team. He brings new specializations and skills to the office and expands our expertise as a firm.

Tax Manager


Ann Brooke is an experienced bookkeeper, tax preparer, and Tax Process Manager, a daunting task now that our processed tax returns per year exceed 800. She earned her degree in Industrial Engineering and Management from Oklahoma State University, and completed the Accounting Series at Austin Community College in 2006. She was hand-picked by Michele to join our firm, and is an essential part of our success. She has instituted and manages a paperless project management system that allows our divergent team to instantly be updated on the progress of our tax project boards.


Tax Process Manager



Tax Team Lead

Cari Vincent, CPA, began working with Sweeten CPA in 2016. She earned a Bachelor’s Degree in Accounting from the University of Louisville in 1997 while also a single, working mother, with two young children, fulfilling a dream she’d had since high school. Cari has been certified as a CPA in the Commonwealth of Kentucky since 2001 and in the state of Texas since 2007. She's worked in both the private sector as a financial analyst and in public accounting as a Senior Tax Accountant, Auditor, and representative for taxpayers before the IRS. Cari has a passion for tax and helping clients understand how tax law affects their business and personal returns. She also enjoys digging into the details of a client’s financial information, and putting all of the puzzle pieces together for them. She is also QuickBooks certified, and is proficient in a wide range of tax and accounting software. Cari currently spends her free time chasing around her two year old granddaughter, Eliza, crocheting, reading, enjoying music, and spending time with her husband, Chuck, and their 17 year old kitty, Zeus.


Angela Angelo began working with Sweeten CPA in 2012. A CPA with the state of Texas since 1997, Angela is knowledgeable with taxes as well as proficient in a wide range of accounting software and is Quickbooks certified.  She has 30+ years of  experience in diverse financial roles including, most recently, various financial supervisory roles at the University of Texas at Austin (go Longhorns!) and Senior Budget Analyst for the city of Plano, Texas. She has two bachelor’s degrees in political science and accounting from Southwestern University and University of Texas at Dallas, respectively.




In 2015, our team gained Michelle Gardy, with a degree in business and management from Southwest Texas State University. She is a driven tax drafter with a passion for learning. We love how she is always acquiring new skills and her diligent meticulousness when drafting returns.  Add to that the kindness and care with which she treats our clients, and it’s no surprise that she has become indispensable to our Tax Process Manager. She is heavily involved in volunteer work while balancing her steady workload and active family. She’s survived multiple tax seasons with us and we’re so grateful for all that she adds to our tax team!


Tax Drafter


A natural with people, Anabel Chiman joined Sweeten CPA in 2018 as our E-File Specialist. She is great at managing the tail end of the tax return process, which makes the whole tax team function. Her experience is in people, organization, and accounting. We're so glad to have her with us!


E-File Specialist


Lisabeth Yeager started at Sweeten in July 2018 and graduated from Southwestern University with a B.A. in History and Sociology. Though she started doing accounting in Austin by accident, she found a passion for it and went back to school for her CPA in 1993. Her flexibility and love of the art of accounting make her a great fit for the firm. She brings over 20 years of experience working for The State of Texas in the Lottery Commission, an intense and rewarding career where she was Chief Accountant, overseeing the complex and nuanced lottery accounting procedures! Now, she lives on an 84 acre ranch where she enjoys her horses and dogs, as well as the occasional early morning of fishing.



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Gretchen Gibson came onto Sweeten CPA in the summer of 2019 and enjoys the varied client tax work, as well as working with the wonderful staff. She is a proud Bobcat and holds a Bachelor of Business Administration in Accounting from Southwest Texas (now Texas State). Her over forty years of tax experience and expertise in QuickBooks and Excel make her an invaluable team member with a wealth of knowledge. She was voted funniest in her graduating class in high school, which her dachshunds have all agreed with, but her three grown sons don't truly appreciate.