LISA DIONISIO, CPA

Founder & CEO

Lisa is a Sooner at heart but holds her B.S. in Business Administration in Accounting and Finance from the University of Minnesota. 

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She started her career at Arthur Andersen in Minneapolis in the private client services department.  She moved from public accounting into the banking industry but continued to specialize in financial planning for high-net-worth individuals.  Her transition to bookkeeping and advisory services began after moving back to Oklahoma in 2007 where several of her friends were opening businesses and needed accounting help.  

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Lisa is passionate about giving back to the community.  She serves on the boards for Bridges, the Norman Public School Foundation and Oklahomans for the Arts. She is also an active member of St. Mark's in Norman.  She is a wife and mother of two teenagers, a lover of yoga, travel, and a good cup of coffee. 

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CASSIE RIGSBY, CPA

Chief Accounting Officer

Cassie holds a Masters Degree in Business Administration with an emphasis in Accounting from Southeastern Oklahoma State University. 

Cassie started her career at Chesapeake Energy Solutions in the Land Audit Department. Cassie’s transition to bookkeeping began in June of 2018 when she began working for Lisa. The variety in different fields of accounting is what allowed Cassie to find her love in working for Paxus and working alongside so many different business owners. Providing accounting services to so many different types of industries is exactly the challenge Cassie enjoys.

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Cassie is passionate about volunteering at her local church. She is a wife and a mother of four beautiful daughters. She is a certified yoga instructor and loves teaching classes. She cannot stand coffee but thoroughly enjoys a hot chai tea latte.

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BECKY HUMPHERS

Controller

Becky holds a B.S. in Mathematics with an emphasis on Computer Science from East Central University.  After graduating, Becky continued her studies at the University of Oklahoma pursuing accounting courses.

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Becky started her career at MidFirst Bank in their Research & Acquisition department as a research/financial analyst.  She spent her time researching and creating pricing models for loan acquisition deals.  After her time at MidFirst, Becky took a break from working to stay home and take care of her children.  During these years she was engaged as a community volunteer in the schools and local non-profits.  Lisa recruited Becky to come work with her and use her skills to help small business owners.

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Becky serves in her church and is also a longtime member of Assistance League of Norman.  Becky is a wife, mother of 2 adult children, and a grendmother.  She loves traveling, reading and playing with her fur babies.

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KRISTIE ANDREWS

Lead Accountant

Kristie graduated from Southwestern Oklahoma State University in 2013 with a Bachelor of Business Administration in Accounting and Finance.

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She started her career at the Federal Aviation Administration (FAA) working on the Month End Reconciliation team then moved to the Financial Statements department. After her first child was born, she decided that she wanted a more flexible work schedule where she could work part-time. She was able to transition into bookkeeping and was brought on by Lisa in 2019 and has loved it ever since.

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Kristie is a wife and mother of two young children. She is an avid reader, loves to take walks, sewing, and doing craft projects with her daughter.

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MICHELLE MAULDIN

Lead Accountant

Michelle earned her B.S in Behavioral Health in 2009 and is continuing her education to work toward a degree in accounting and finance.

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Michelle has been doing bookkeeping for more than 20 years. She began her journey as a small business owner, and over time brought her talents to other small businesses and later, large corporations. She has had bookkeeping experience in oilfield equipment rental, transportation, construction, cleaning, property management and more. She finds joy in solving the puzzles and bringing order to clients’ books.

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In her personal time, Michelle spends her time with her children and grandchildren at every opportunity, in whatever form that may take. Michelle has a strong faith in God and a firm belief that family is the greatest investment you can make. Michelle is a lifelong animal lover and has two cats and one dog that she adores. She takes advantage of any occasion for metal detecting, crochet, long rides on the motorcycle and gardening in her free time.

JENNIFER SANDERS

Office Manager/Lead Accountant

Jennifer earned her B.A. in Sociology from the University of Central Oklahoma. She worked for over a decade at a local insurance agency, followed by several years as a project manager for a fiber optics engineering company.  Jennifer takes great pride in the ability to learn and adapt to new opporunities.

In October 2022, Jennifer joined Paxus CPA. The opportunity to work alongside a supportive team while helping small businesses reach their goals is exciting for her.

Jennifer and her husband have three children.  Aside from her family, Jennifer’s passion is helping others.  She is active in the community and volunteers with multiple organizations. Jennifer started her own non-profit in 2023 to honor her grandfather. The Lester Reed Music Project will provide musical instruments to children in Norman Public Schools.  Her goal is to “Make Music for Everyone”. 

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CAROLINE JEFFREYS

Lead Accountant

Caroline earned her B.A. n Accounting from the University of Oklahoma. She worked for GI of Norman for 31 years and helped to grow the company from a solo practitioner with one office and six employees to five physicians, three mid-level providers, two clinics, two surgery centers and 60 employees.  When Norman Regional Health System acquired the practice, she "retired" from GI and spent a year in the finance department at NRHS.  An opportunity to work in the Advancement department at Mount St. Mary Catholic High School came her way, and for two years she enjoyed helping raise money for the school where her sons graduated.  In 2023, Caroline decided to dust off her accounting skills and join Paxus CPA.  She loves the flexibility and working with a variety of clients.  

Caroline enjoys scrapbooking, reading and doing home improvement projects.  She is an active member of St. Thomas More Catholic Church and the Norman Delta Gamma alumnae group.  She and her husband have two grown sons and a daughter-in-law. 

HANNAH THOMPSON

Staff Accountant

Originally from Houston, Hannah moved to Oklahoma in 2023 and joined the Paxus CPA team in 2024. Her professional background includes an Associate’s degree in Business  and work as a bookkeeper and payroll clerk for a construction company.

Hannah’s most cherished role is that of a parent. She is married with two bundles of joy, Rhett and Indie. Her children hold a special place in her heart.

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Beyond her professional and family life, Hannah enjoys cooking, spending time with loved ones, attending concerts, and indulging in her lifelong passion for soccer.

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