About Us

We develop strong relationships with our clients, becoming a part of their team and a champion for their growth and success.

Our goal at Roper Accounting Group is to become a proactive part of your team so that you can make sound business decisions for your small business or personal financial needs. We have over 160 years of accounting and business experience.

At Roper Accounting Group, we view income taxes as not only something for which you plan, but integral to your wealth strategy. Maribeth and her team are ready to help you with individual, business, and estate tax returns.

We know that your financials are always changing, which can present new challenges daily. When they do, Roper Accounting Group is ready for you to tap our knowledge, and we are the ones who will get to know you and help grow your business.

We are a small business helping other small businesses grow. We specialize in the construction, medical, legal and professional services industries.

Medical Practice Accounting Help

Our Team


Maribeth Christensen, CPA

President & Owner
As a CPA who has built two successful women-owned companies, she enjoys helping individuals and small business owners navigate the many areas of accounting and finance. Accurate and sound financials are important for many purposes. We give our clients the confidence to know their numbers are accurate when doing their taxes, applying for a loan or attracting investors. Maribeth has her Master’s in Accounting from UNC Chapel Hill and has held her CPA license since 1992. She has a BA in Economics from Creighton University. Maribeth has an extensive financial background working for both Deloitte and Merrill Lynch along with serving as a senior financial advisor with Revlon. When Maribeth is not out riding her bike on the greenway, you will find her walking with her two precious golden retrievers, Emma and Josie! Maribeth is a lover of music festivals with her favorites being MerleFest and the Albino Skunk Festival. Maribeth is a mom to three adult children who bring her joy every day. And a delicious slice of cheesecake with a nice cup of tea is her favorite.

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Tiffany Barry

Marketing Manager
Tiffany is responsible for the development and execution of marketing initiatives for Roper Accounting Group’s range of services. She has an extensive background in marketing and advertising working in Chicago and NYC for various hospitality and advertising agencies including McCann-Erickson and Marriott International. Tiffany has her B.A. from Lake Forest College and continuing education from University of Chicago Booth School of Business and Cornell University’s SC Johnson School of Business. After two cross country moves, she has been in Raleigh with her husband and two children since 2015. Tiffany is an active volunteer with the Junior League, Christ Church, Note in the Pocket, Cardinal Gibbons and Broughton High School. Tiffany cannot pass up a slice of Key Lime pie with fresh whippped cream.

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Susan Duggan

Staff Accountant
Susan has 31 years of experience. Prior to leaving the corporate world to care for her children, Susan was an executive secretary. As the co-owner of a ceramics shop with her mother, Susan honed her QuickBooks skills and understands the complexities of running a small business. Susan attended Bergen Community College and is a volunteer Treasurer for Johnston County Beekeepers Association. Susan has been married to John for over 30 years and moved from New Jersey to North Carolina almost 5 years ago. Now a proud grandmother, Susan enjoys beekeeping and spending time with family. Her favorite dessert is carrot cake.

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April Hamilton

Staff Accountant
April has over 22 years of experience using QuickBooks and has been with Roper since 2010. Born in Honolulu, HI, April has her B.S. in Accounting from Livingstone College, where she was a member of the Athletic Hall of Fame. April is a Certified QuickBooks ProAdvisor. In her free time, April enjoys spending time with her three children and coaching for Track Xplosion Youth track club and Rolesville High School track team. April serves as treasurer for the Rolesville High School Booster Club and for Pop Warner Capital City Steelers Youth Football. As for dessert, Chocolate Mousse Pie is April’s favorite.

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Nollie McDonald, CPA

CPA & Staff Accountant
Originally from Charlotte, NC, Nollie graduated from UNC-Chapel Hill and went on to get her Master’s in Accounting from UNC-Chapel Hill. She earned her CPA in 2021. Nollie is an avid animal lover and in her free time, enjoys spending time with her friends and family. Her dessert of choice is Baskin Robbins Mint Chocolate Chip Ice Cream.

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Julie Pettengill

Staff Accountant
A North Carolina native, Julie has over 8 years’ accounting experience including her QuickBooks ProAdvisor Certification. Julie has her A.S. in Applied Science and Accounting from Wake Tech. Since 2018, Julie has been a member of the American Institute of Professional Bookkeepers. In her free time, Julie loves to garden and cans the bounty from her vegetable garden. And a tasty slice of sweet potato pie is her favorite dessert.

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