About Our Team

We're industry leading accounting and tax experts ready to help you navigate a complicated landscape.
We are a full-service sales tax management and compliance organization, based in Atlanta, Georgia. Our team includes CPAs, MBAs, and CMIs (the highest designation for sales tax professionals). Together, we have over 100 years of experience in income tax, sales tax and tax technology. We specialize exclusively in the ecommerce retailing industry.

Mike Stokke, Chief Executive Officer

Mike is a 35-year veteran of the public accounting industry where he practiced federal and state taxation with several national firms. His clients were primarily closely-held, owner-operated businesses in the real estate, manufacturing, and services industries. In addition to serving clients, Mike held local, regional, and national leadership roles in the tax practices of each of the firms he served.

Throughout his career, Mike has been a proponent of leveraging tax technology to achieve efficiency and higher value for his clients and the businesses he managed. He is an expert at identifying and implementing the correct combination of software solutions to enhance the delivery of tax services.

Mike holds a BBA in Accounting from the University of Wisconsin-Eau Claire, and an MBA from the University of Minnesota. He is a CPA with licenses in Texas and Georgia. He resides in Duluth, GA.

Peter Mantell, Chief Marketing Officer

Peter is an experienced business development executive with over 10 years’ experience in developing and implementing market penetration strategies for organizations ranging in size from start-up to over $300 million in annual revenue. He previously held international management roles for leading education tech companies. Peter currently serves as President of Mantell International Sales and Distribution, Inc., a company he founded in 2014.

Peter has extensive experience in the ecommerce industry as a result of operating his own ecommerce retail business, and now as a successful and well-known wholesaler/distributor to hundreds of ecommerce retailers. He is a member of several ad hoc groups of wholesalers and ecommerce retailers who regularly communicate to share and compare industry best practices.

Peter holds a Bachelor’s Degree in Business Administration from Southern Virginia University. He resides in Fishersville, VA.

Ned Lenhart, Chief Knowledge Officer

Ned has 30 years of diverse sales tax consulting experience serving the technology, manufacturing, professional services, and healthcare industries.  Ned services clients located throughout the U.S. on matters of multistate sales tax.  These include tax matrix development, voluntary disclosure, audit defense, tax overpayment studies, merger and acquisition consulting, and strategic planning.  Ned Lenhart started Interstate Tax Strategies, P.C. in 2003 after serving as Director and Practice leader of the Deloitte sales tax practice of the Atlanta office.

Ned has also worked with the Missouri Department of Revenue as the Director of the Division of Compliance which oversaw the tax audit and criminal investigation operations of the Department. Ned frequently presents on matters of multistate taxation to professional and trade associations and has been featured as a tax expert on several Atlanta radio stations.

Ned holds an MBA from Minnesota State University and is a CPA licensed in Georgia, Alabama, and New York. He resides in Atlanta, GA.

Ken Helms, Member

For the past 20 years, Ken has worked in the indirect tax arena as a state auditor, consultant, and process owner. His experience includes state and local sales and use tax, state and local occupancy tax, federal and state telecommunications tax, federal, state and local motor fuel excise tax, local business licenses, and several other indirect taxes. He is also well- versed in the application of Six Sigma process design and implementation in the indirect tax function.

Previously, Ken held indirect tax leadership roles at United Technologies and Intercontinental Hotels Group. He currently is the Principal at Indirect Tax Solutions, a company he founded in 2013. Indirect Tax Solutions identifies and designs custom deliverables for indirect tax departments documenting real dollar, enterprise value to the organizations.

Ken holds a Bachelor’s Degree in Accounting from Eastern Illinois University. He is a Certified Member (CMI) of the Institute for Professionals in Taxation. He resides in Atlanta, GA.