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About Us

Darlene Diemer, of Diemer Accounting, Inc. and Scott A. Potter, CPA, have teamed up and will now operate as part of DP Tax & Accounting PLLC. DP draws on each of our names, to represent the two parties coming together (D for Diemer, P for Potter).

Darlene Diemer Grand Rapids MIDarlene Diemer – Founder of Diemer Accounting, Inc.

Darlene Diemer, is the founder of Diemer Accounting, Inc., a firm she started out of her Allendale, Michigan home in 1992.  Prior to launching her own company, Darlene worked for an accounting firm for ten years, and now has nearly four decades of experience in the industry.

Her favorite client is one who feels lost or overwhelmed when it comes to their accounting or tax needs. Her main goal is to streamline the various “chores” of her client’s day-to-day business operations, which results in more profit, and less headaches for her clients.

Darlene works with a wide variety of small and mid-sized business on projects such as implementing QuickBooks Online for newly formed companies, training of business owners in the operational uses of QuickBooks, clean-ups of bookkeeping records, and preparation and filing of annual income tax returns.

Darlene is a Certified QuickBooks® Desktop ProAdvisor and a Certified QuickBooks® Online ProAdvisor. As an Enrolled Agent (EA), she is licensed to represent clients with tax issues in front of the IRS and can assist clients nationwide.

When Darlene isn’t working, she likes to spend time with her adult children and grandkids. She is also an avid horseback rider and has recently participated in the Michigan “Shore-to-Shore” ride event, which is a ten-day trip where participants ride solely by horse from Lake Huron to Lake Michigan.

With the creation of DP Tax & Accounting PLLC, Darlene will continue to focus on serving her many dedicated clients, while being able to reduce the level of administrative tasks (aka “busywork”) in her day-to-day.

Scott Potter, CPA Grand Rapids MI Scott Potter, CPA – Founder of DP Tax & Accounting PLLC and Scott Potter – The Tax Nerd

Scott is a native of Jenison, Michigan, graduating from Jenison High School, before going on to Michigan State University, where he earned his Bachelors and Masters in Accounting. Scott spent the next 20 years working in both public accounting (Deloitte), and private industry (including Ally Bank, DirecTV, and Hyundai Capital), with an emphasis on IT and business process controls. He spent much of his early career in the Detroit area, followed by four years in Sao Paulo, Brazil, and most recently Anaheim, California.

In 2018, Scott decided to refocus his career and started his own tax practice, and at the same time began the process to obtain his Certified Public Accountant (CPA) license. He successfully passed all four sections on the first try, becoming licensed in both Michigan and California.

Similar to Darlene’s beginnings, Scott started small from his home office and quickly grew his tax practice. As he is fluent in Portuguese from his time in Brazil, Scott has an additional area of focus in working with international taxpayers. Scott’s favorite type of project is one that others may brush off as too “messy” or complex, and loves the education component of client service, helping clients understand tax and accounting concepts in terms that they can relate to.

In his spare time, Scott enjoys cooking, traveling to new locations with his wife, spending time with family, and enjoying nature with their whippet, Pinkman. He has strong roots in the area, with extended family living throughout West Michigan. Proximity to family played a significant role in his decision to move back to the area.

Amanda Groenink - Office Manager Grand Rapids MIAmanda Groenink

Amanda Groenink has the distinction of being Darlene’s first employee after Darlene expanded beyond her one-woman operation, starting out in 2008 as an accounting assistant. Drawing from over 10 years of previous experience, Amanda has served as the business’s office manager and organizational guru. Over the years she has filled many shoes, including managing payroll, sales tax, bank reconciliations, posting, and generally keeping the office running smoothly. She still works on a variety of activities, but recently has pivoted to spending more time with her youngsters.

Amanda likes running, spending time with her family, playing with her puppy and enjoying some fun in the sun at the beach.

Brenda VanZalen - Administrative Assistant Grand Rapids MIBrenda VanZalen

Brenda VanZalen joined the Diemer Accounting team in January 2016, working as the company’s administrative assistant, where she enjoys interacting with her co-workers.

Brenda’s general duties include assisting with financial postings, accounts payable, any scanning, ordering, or filing that needs to be done throughout the office, as well as helping with client correspondence.

In her free time, Brenda likes to read, camp, and kayak, as well as spend time rockhounding near Lake Superior.

Kim McCormick

Kim McCormick began working with Diemer Accounting in June 2020, as the company’s staff accountant. She is most passionate about helping clients’ businesses succeed. Kim loves to solve puzzles and looks at her job as a daily puzzle, creating order out of a jumble of numbers and bits of information to find the right place for each piece. At the end, she achieves a whole and balanced financial picture.

Kim’s duties include working with a variety of clients, processing accounts payable, reconciling bank accounts and credit card transactions, monthly or quarterly reviews, and financial reporting. She earned a Bachelor’s degree in Business Administration from Baker College.

When she is not working on client books, Kim loves to read, camp, and thrift shop. She is also a pet lover and fosters senior and special-needs cats and dogs, as well as cares for her own motley crew of dogs. She has an interest in movies based on actual historical events, and her favorite film is Schindler’s List. Kim has a great sense of direction and is active in animal rescue and has helped with fundraising, event planning, grant writing, and bookkeeping.

Sandy McCallum - Accounting Assistant Grand Rapids MISandy McCallum 

Sandy McCallum has been with the Diemer Accounting team since 2017, working as the company’s accounting assistant. Sandy currently works with both DP Tax & Accounting on bookkeeping activities such as monthly postings and bank reconciliations, as well as performing payroll-related functions for PayDay Solutions.

Sandy enjoys camping, shopping, reading, and spending time with her family and little dog, Daisy. Fun fact: Sandy is an expert bargain thrift shopper and loves finding those great deals!

Bloem_Megan_-_PhotoMegan Bloem

Megan earned her BA from the University of Michigan with a double major in Spanish and Sociology. After graduating in 2020, Megan worked at Diemer Accounting for tax season. She then won a Fulbright Award to teach English in Madeira, Portugal for a year. Upon returning to the US, she worked in international education as a study abroad advisor and also led a high school study abroad program in Granada, Spain. She is very excited to apply her experiences and skills in rejoining the team as an Office Manager. 

Megan is passionate about learning languages, working with individuals from different cultures, and playing pickleball.