NSTP Staff

NSTP Liaison for Tax & Advocacy | Instructor | Helpline

With a passion for continuing education and advocacy, Nina Tross comes to the National Society of Tax Professionals focused on building value and speaking for the rights and interests of individual tax…

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Rodney Boswell, MBA, EA

Instructor | Helpline

Rodney Boswell has over 20 years experience in the tax industry with the same accounting firm headquartered in Louisiana. Stepping right out of graduation from Northwestern State University with a Bachelor…

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Stephen A. Brann, EA

Instructor | Helpline

Stephen has been a member since 1997. Most recently he has sold his practice in Minnesota and is devoting his efforts to representing a few long-time clients and working with NSTP on the Helpline and as a…

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Tammy R. Davis, EA

Instructor | Helpline

I got my first introduction to tax world as a young tax courier in my father’s business. He prepared taxes for 50 years until retiring in 2020 at 89 years of age. His endurance and passion must hereditary. Tax…

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Henry Grabkowitz, EA, MCP, NTPI Fellow

Instructor | Helpline

Henry Grabkowitz grew up in Rochdale Village (possibly known to some as the site of the old Jamaica Racetrack) in Jamaica, NY (New York City) and is a graduate of Stuyvesant High School and Queens College…

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Isaac R. McRae, III, MST, EA, NTPI Fellow

Instructor | Helpline

Isaac McRae has over 30 years experience in the tax industry. Mr. McRae earned a BBA in Accounting from Howard University, a MS in Taxation from Southeastern University and a Fellow from the National Tax…

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Jason Osser, CPA, MBA

Instructor | Helpline

Jason Osser graduated from State University of New York at Oneonta with a Bachelor of Science in Accounting and Economics, and from Binghamton University with a Master of Business Administration with a…

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Kristina L. Rice, CPA

Instructor | Helpline | Webinar Moderator

Kristina Rice, is a Certified Public Accountant and served on the board from January 2014 through December 2021. She currently serves as a Webinar Moderator and works alongside the Helpline Staff. Kristina…

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Constance R Abercrombie, CPA, MST

Helpline | Webinar Moderator

Constance has been a member of NSTP for over 20 years. She started her career performing financial audits at Ernst & Young Public Accounting Firm and realized her calling in the field of taxation. Her first…

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NSTP Welcomes You!

NSTP was founded in 1985 with a goal to help Tax Professionals improve their business through association with other professionals, promotion of continuing education, a code of ethics, and cooperation between members of the profession.

Those goals haven’t changed. For over 35 years NSTP’s Board of Directors, Instructors, Helpline Staff, and Office Staff have diligently provided the very best continuing education in tax preparation, ethics, and client service.