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David Rabinowitz started his professional career as a small business owner after his stint at UT here in Austin. His background with computer hardware and software during that time made him a good fit for several technology, support and project management positions with companies like USAA, Southwest Research Institute and the Armstrong Laboratory of the U.S. Air Force. He came on in 2015 as Office Manager to fill an immediate need, and has found that the environment of Sweeten CPA and the day to day interactions he has with our clients gives him immense satisfaction and the opportunity to exercise his wit and passion for problem solving. He is also one heck of a poker player.

Operations Manager

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Human Resources

Toni Borthayre joined Sweeten CPA in August of 2022 as the Human Resources leader. Toni brings to Sweeten over 25 years of HR leadership experience with a focus on employee training and development, talent acquisition and employee programs. She has worked in the telecom, hi-tech, banking and finance, education, healthcare, and manufacturing industries where she has led global teams to assess, develop, or redesign HR programs with a focus on efficiency and forward-thinking. Toni is a certified PHR and SHRM-CP professional and a proud graduate of Texas State University who prides herself on the goal of building, cultivating, and supporting employee-centric environments. Toni calls Central Texas home but has raised her three kids in North Texas over the last 17 years. She enjoys creating fun and delicious dishes in the kitchen, writing, traveling, being outdoors, live music, pretending to be a foodie, listening to self-help books, watching romcoms, and anything to do with Marvel or Star Wars.


Lori Wasson has over two decades of experience in accounting, including ten years managing her husband’s roofing company, giving her an intimate understanding of small businesses and their books. As Sweeten CPA’s bookkeeper, she wrangles accounts receivable, 1099s, POAs, and many other bookkeeping and administrative tasks. In her spare time, she loves snuggling up with a warm blanket, her fluffy cats, and a warm and fuzzy novel.


Accounts Receivable Manager


Mandi is a born and raised Austinite! Her previous years in customer service, from a restaurant to an interpreting call center, taught her the importance of customer relations. She graduated from Lamar University in Beaumont, TX in 2018. Her degree in psychology and love of personality tests fuels her love of people. She is excited to apply that love to the world of accounting! In her spare time you can find her at crafting stores buying yet another scrapbook to fill. Current count is 4!


Special Projects & Office Manager

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We welcomed Ryan McDonald to our team in 2022. After 20 years of mastering the restaurant industry, he’s taking his customer service and interpersonal skills to a new field. Ryan processes through documents and special projects like it’s rush dinner service. More than his love for helping, he loves to be a team player that makes you laugh. Ryan did not 86 his love of food when he changed industries, though! During off hours, he can be found cooking and experimenting with different cuisines. He is always excited to take or give recipe suggestions! 




Coming soon!


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