Who We are and How Are We Different?

Meet Our Team



David Knopf, CPA is the owner and founder of Knopf Co LLC.  David is a Maryland CPA, an Advanced QuickBooks ProAdvisor and tax professional.  David has consulted with many clients spanning various industries on how to best use QuickBooks financial software.  David also specializes in developing QuickBooks custom reports using business intelligence tools - such as Excel Power Pivot, Power Query and Power View. David is a tax professional and consults with clients to proactively implement tax planning strategies.   

David earned his bachelor’s degree (Summa Cum Laude) from the University of Memphis with a focus on Management Information Systems.  He also earned his Master’s in Accounting from Baruch College of City University of New York.  David started his career in 1998 working in private accounting – first as a bookkeeper and eventually controller - of a multi-store retail jewelry store in Memphis, TN.  In 2003 David transitioned to public accounting and worked closely with a number of sole practitioners in New York.  David also developed a successful QuickBooks consulting practice in New York after becoming a ProAdvisor in 2004.  In 2006, David joined an established regional firm in Baltimore, MD before finally founding Knopf Co LLC in 2008.




Daniel Spetner, CPA joined Knopf Co LLC in May of 2014.  Daniel is a Maryland CPA and tax professional who is involved in many of Knopf Co's tax engagements. He is also a Quickbooks Online ProAdvisor.                                                                                        

Daniel completed his bachelor’s degree from Charter Oak State College. Daniel then went on to complete his Master’s degree in Accounting, graduating with honors, from SUNY Old Westbury. To his credit, Daniel passed all four sections of the CPA exam on his first attempt.

Before joining Knopf Co LLC, Daniel worked in the tax department at another small accounting firm from 2012 through 2014.  Daniel was responsible for the preparation of income, payroll and property tax returns.


Gershon Geller, EA joined Knopf Co LLC in May of 2011.  Gershon supports all of the day-to-day operations of the firm and provides certain tax and accounting professional services.  

Gershon earned the  IRS Enrolled Agent designation and passed a three-part comprehensive exam covering individual and business tax topics.  The Enrolled Agent status is the highest credential the IRS awards.  Enrolled agents, like attorneys and CPAs, have unlimited practice rights before the IRS.  Gershon passed all three parts of the Enrolled Agent exam on his first attempt. Gershon earned a bachelors and masters degree from Ner Israel Rabbinical College and graduated in 1999.


Charna Knopf joined Knopf Co LLC in 2012.  She is an experienced bookkeeping professional and provides bookkeeping services to numerous Knopf Co clients.  Charna began her bookkeeping career in 2000,  she is passionate about her position and seeks to provide excellent client service.  She is a mother of 5 and appreciates the work-life balance Knopf Co LLC offers.


Our Core Practice Values


We want to know everything we can about you. What are your strengths? What are your issues? What are your goals and how do you plan to reach them?


We are on the lookout for your opportunities and bring them to your attention.  In addition, we do not wait for issues to arise, rather we look for problems before they surface.


If you had our tax, accounting and QuickBooks knowledge, what decision would you make?  What advice would you give yourself?  That is exactly the approach we take.


QuickBooks + Tax Expertise is a winning combination.  We have a deep understanding of our client's accounting software and provide relevant feedback on an ongoing basis.  Simply put, our QuickBooks expertise allows us to more efficiently and effectively prepare your income tax returns.