Meet the Team
Melissa C. Simmons | CPA, EA, CSA
Managing Partner & Technology Manager
Melissa works with individual and business taxes, and business accounting. She earned her BBA (Bachelor of Business Administration) in 1988 and has worked in public accounting since that time. She became an EA (Enrolled Agent) in 1994. Melissa is a member of the Texas Society of Enrolled Agents, North Texas Enrolled Agents, and has served on the board of Directors in a variety of roles. Melissa became a CPA in 2009.
Melissa joined the firm in 1989 and became a partner in 2009.
Melissa has been married since 1991 and has one son. She is active in her church, enjoys singing in the church choir and likes to do sewing and needlework.
As a member of a military family growing up she has lived all over the nation and overseas. She was born in Wiesbaden, Germany. She has lived in McKinney since 1991.Email Melissa
MARK BIERSMITH | MBA, CPA, CMA, CCP, CGMA, IFRS, XBRL
Mark’s industry experience includes technology, manufacturing, public accounting, real estate/property management, insurance/broker dealer, construction, retail, private equity fund partnerships, film, advertising, media, and transportation. Mark’s expertise includes contract negotiations and management, national mergers and acquisitions, private equity and public offerings.
Biersmith possesses the following credentials or academic certificates: Master’s Degree in Business Administration (“MBA”), Certified Public Accountant (“CPA”), Certified Management Accountant (“CMA”), Certified Computer Professional (“CCP”), Chartered Global Management Accountant (“CGMA”), International Financial Reporting Standards Academic Certificates (“IFRS”) from both the American Institute of CPAs (“AICPA”) and the Institute of Chartered Accountants in England and Wales (“ICAEW”), and an extendible reporting language (“XBRL”) certificate from the XBRL Foundation.
Mark is a frequent speaker and contributor to industry publications and podcasts.
Mark joined the firm in 2017.
Living a balanced life is important to Mark, and he enjoys starting his day with a little yoga.Email Mark
Ann works with billing, firm accounting, human resources, as well as keeping the office operating smoothly. She has previously been an Office Manager, done bookkeeping and inventory control in various industries including telecom and laboratory.
Ann joined the Andre firm in 2007.
She is active in her church, enjoys square dancing and going to the Flea Market. Ann is originally from Ohio but now makes Plano home along with her husband and son.Email Ann
Teresa Dempsey | CPA, EA, CSA
Individual Tax Department Manager
Teresa manages the firm’s Individual Tax Department as well as helps with accounting for larger business clients. She earned her Bachelor of Science in Business Administration with an emphasis in accounting in 1983. She has worked in public accounting since that time. She became an EA (Enrolled Agent) in 2002. Teresa is a member of the Texas Society of Enrolled Agents and the North Texas Enrolled Agents. She also serves on the Board of Directors for Tax Alliance Conference. Teresa became a CPA in 2009.
Teresa joined the Andre firm in 2001.
Teresa is married and has one son and one daughter. She is active in her church and enjoys playing handbells. She and her family have lived in the McKinney area since 1998.Email Teresa
Jana Endler | CPA
Business Tax Department Manager
Jana manages the firm’s Business Tax Department as well as helps with accounting. She has worked in the accounting industry since 1988. She earned her Bachelor of Science-Accounting Control Systems in 2008. She is a member of the Texas Society of Certified Public Accountants and a member of the American Institute of Certified Public Accountants. Jana became a CPA in 2009.
Jana joined the firm in 2017.
Jana and her husband have 1 daughter. Jana relaxes by playing the piano and reading.Email Jana
Rachel Lopez | CPA, QuickBooks Advanced Certified ProAdvisor
Accounting / Payroll Department Manager
Rachel manages the firm’s Accounting/Payroll Department, providing services in monthly accounting, payroll, and tax preparation for a broad range of small business clients. She has worked in public accounting since 2001. Rachel earned a Bachelor of Science in Accounting and Information Management in 2008. She is a QuickBooks Advanced Certified ProAdvisor who provides training and support for various products in the QuickBooks family. She became a CPA in 2016.
Rachel joined the Andre team in 2001.
Rachel is married, has two daughters and lives in McKinney. She is active in her church, and enjoys spending time outdoors.Email Rachel
Tracy Eleftheriou | CPA
Tracy manages the firm’s business clients, delivering services in monthly accounting, payroll, and tax preparation for a broad range of small business clients. She earned a Bachelor of Science in Accounting in 1987. Tracy has worked in public accounting all of her professional career and has experience in auditing, taxation and business accounting. She is a member of the American Institute of CPA’s. Tracy became a CPA in 1991.
Tracy joined Andre + Associates in 2003.
Tracy and her husband live in Frisco, TX. When not working on client’s accounting she enjoys her 2 dogs and time with her family and traveling.Email Tracy
Bill McCord | EA, CSA
Bill works in our tax department providing service to both personal and business clients. He worked in the public and private sector since 1980. Bill became an EA (Enrolled Agent) in 2010 and a CSA (Certified Senior Advisor) in 2013. He is a member of the National Association of Enrolled Agents, Texas Society of Enrolled Agents, North Texas Area Enrolled Agents, and the Society of Certified Senior Advisors.
Bill McCord joined the firm in 2008
He and his wife live in the McKinney area. His hobbies include historical trivia, and when time allows, a round of golf.Email Bill
Susan Morese | EA
Susan works in our tax department providing service to both personal and business clients. She earned a Master of Science degree in Accounting, emphasis in Taxation in 1990. She became an EA (Enrolled Agent) in 2016.
Susan joined the Andre team in 2018.
When not working or reading, she enjoys time with her husband and two daughters.Email Susan
Terry serves our clients in the tax department. She prepares taxes for both Individual Taxes and Business Taxes. Prior to joining our team she had experience in the banking industry specializing in audit. Terry is a Certified Bank Auditor, Certified Trust Auditor , Certified Risk Management and Certified Financial Service Auditor.
Terry joined our team in 2008.
She and her husband love to travel internationally. Rome is one of their favorite destinations.Email Terry
Deana serves our clients in the tax department. She prepares taxes for both Individual Taxes and Business Taxes.
Deana joined our team in 2016.
When not doing taxes Deana is being a mom to her 2 daughters.Email Deana
Linda Clark | Quickbooks Advanced Certified ProAdvisor
Tax Preparer / Bookkeeper
Linda serves our clients as part of the Payroll and Accounting Departments. She also serves as a tax preparer for both Individual Tax and Business Tax returns. She earned her Bachelor of Science in Accounting in 2005. She has worked as a bookkeeper since 2000. Linda became a QuickBooks Certified Pro Advisor in 2007.
She joined the firm in 2014.
Linda enjoys her time off with family and her dog.Email Linda
Sharolyn Candelario | EA
Sharolyn works in the firm’s Accounting/Payroll Department. She graduated with an Associate Degree in Accounting in 1983. She has continuously worked in private business before joining the firm. Sharolyn became an EA in 2006. She is a member of Texas Society of Enrolled Agents and North Texas Enrolled Agents.
Sharolyn joined the Andre team in 1993.
She and her family enjoy cheering on Baylor University sports.Email Sharolyn
Ginger works in the firm’s Accounting Department. Her previous work experience has been in several Controller offices. She has worked with general ledgers, accounts receivable, accounts payable, payroll, quarterly payroll taxes, and quarterly sales taxes.
Ginger joined the Andre team in 2015.
When not at the office Ginger enjoys spending time with her grandson and decorating her home.Email Ginger
Debbie works in the Accounting and Tax Departments. She graduated with her Bachelor of Business Administration in Accounting in 1984. She previously worked in the real estate accounting industry.
Debbie joined the firm in 2000.
The Guerreros have 2 children and live in Prosper, Texas. Debbie enjoys reading and cooking when she is not working.Email Debbie
Nazy joined the team in 2018 Email Nazy
Mary Ann Springer
Mary Ann works in the firm’s Payroll Department. She has continuously worked in the bookkeeping, payroll and tax fields since 1984. She also works with QuickBooks.
Mary Ann joined the Andre team in 2006.
Mary Ann enjoys spending time with her grandchildren and gardening.Email Mary Ann
Dona works as part of the administrative team doing a variety of support tasks in both the Tax Department and Finance Departments. She has a variety of experience from merchandising, accounts receivable, to administrative duties. She has worked in the retail industry as well as the financial industry.
She joined the firm in 2013. Dona is a native Texan and loves getting to see her grandkids. She also volunteers at her church in a variety of roles.Email Dona
Kay works as part of the administrative team doing a variety of support tasks. Her background is in retail & grocery management, corporate training and recruiting.
Kay joined the firm in 2016.
Illinois is her home state, but is glad she relocated to Texas in 2015. She has always been active in her church, enjoys teaching, and being creative. Her newest passion is drawing original Zentangles.Email Kay
Reception & Guest Relations
Debbie’s past work experience in guest relations has been in a variety of industries as well as serving as church secretary. She has skills with accounts receivable, accounts payable, and payroll.
Debbie joined the firm in 2017.
She relocated to the McKinney area in 2015 from Wichita, KS to spend time with her grandkids. She also enjoys travel and trying new restaurants.Email Debbie
IT Support Specialist
Seth’s passion for computers and his skills with figuring out the mechanics of how they work are a welcome addition to the Andre team.
Seth joined the firm in 2017.
Seth is a native Texan and has grown up in the McKinney area. He also enjoys gaming and all stuff electronic.Email Seth