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Frank is a dedicated professional who is always seeking a positive outcome for those he works with.


Diane S. - Texas

Frank Lambertus, CPA - Owner

I have been serving the accounting and tax needs of individuals and owners of small to mid-sized businesses in North Carolina, Colorado, Arizona and nationwide since I founded Lambertus CPA in 2009. In addition to taxes, client engagements have also included: 

  • Calculating simple, repeatable product costing so clients with side gigs or craft businesses can better determine profitable pricing for their efforts.
  • Developing key metrics and performance indicators (KPI’s) which clients can easily monitor to help keep their revenues rolling in.
  • Assisting new clients become current with their tax compliance who hadn’t been for many years, often due to complicated family transitions.
  • Providing expert witness testimony to support a legal judgment for my client by re-creating past financial transactions (over several years) to identify fraudulent withdrawals.
  • Suggesting simple process controls clients can implement to increase their likelihood of proper handling of their financial transactions, cash and other assets and reduce errors.


Before starting Lambertus CPA, I spent 14 years in public accounting firms (regional to Big 4) providing audits, controls and compliance services to a wide variety of organizations. I rounded out the rest of my career with private enterprises in various technical positions including internal audit, director of securities and regulatory reporting, and governance, risk, controls and compliance advisor. 


I am a native West Virginian (Montani Semper Liberi) and graduated from Vanderbilt University, where during my senior year I took an accounting class and never looked back.  I moved to Colorado to ski while working my way through night school at the University of Colorado to earn a Master’s degree in Accounting.  I began my professional accounting career in Denver and remained out west for 30 years before returning to the Southeast.  When I am not working, I still enjoy skiing, riding my motorcycle to visit nearby family, serving in local professional organizations, and attempting to play golf. 

credentials

Certified Public Accountant

  • North Carolina      #42924
  • Colorado               #17372

Other Certifications

  • Certified Internal Auditor                           #194133
  • Certified Information Systems Auditor     #21173691

Licensed CPA Firm

  • North Carolina     #34621

Verify a cpa licenseverify irs credentialed tax preparer

memberships

ISACA - Treasurer, NC Research Triangle Chapter

Institute of Management Accountants - Past Treasurer, Denver Chapter

Institute of Internal Auditors

education

MS Accounting

     University of Colorado - Denver


BS Engineering Science and Economics

     Vanderbilt University

Copyright © 2023 Lambertus CPA, PLLC - All Rights Reserved.

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