• What We Do
  • Who We Are
  • Resources
    • Forms, Documents & Links
    • Refund Tracker
    • Resources Library
    • eBooks
    • Testimonials
  • Client Portal
    • Protected Xchange
Pay Bill Get In Touch
  • What We Do
  • Who We Are
  • Resources
    • Forms, Documents & Links
    • Refund Tracker
    • Resources Library
    • eBooks
    • Testimonials
Pay Bill Get In Touch

Apps

Select online apps from the list at the right. You'll find everything you need to conduct business with us.

Protected Xchange

Meet our team

Trey Horton

Trey D. Horton, CPA, MBA, CTC

Owner

Gregory E. Pfanstiel

Gregory E. Pfanstiel, CPA

Director of Tax Services

Nicole M. Priebe

Nicole M. Priebe, MBA

Director of Client Accounting

Gennie L. Hawbaker

Gennie L. Hawbaker

Director of Operations

Stephanie L. Horton

Stephanie L. Horton

Director of Client Experience

Martin J. Frei

Martin J. Frei, CPA

Tax Manager

Richard A. Polakowski

Richard A. Polakowski, CPA

Tax Manager

Jessie R. Shulo

Jessie R. Shulo, CPA, MPA

Staff Accountant

Victor L. Panlilio

Victor L. Panlilio

Staff Accountant

Charlene C. Rago

Charlene C. Rago

Staff Accountant

Katie M. Schmidt

Katie M. Schmidt, CPA

Tax Accountant

Cynthia A. Martin

Cynthia A. Martin, CPA

"Mostly-Retired"

Female staff silhouette

Sarah L. Couch, CPA

Tax Accountant

James Buck

James D. Buck, CPA (Semi-Retired)

Tax Accountant

Stewie

Stewie

Office Companion & Chief Morale Officer

Contact Us

Denver Office

7800 E. Dorado Pl
Ste. 110
Greenwood Village, CO 80111

p:  (303) 275-8910

f:  (303) 275-8914

e: 

AICPA logo

Copyright © 2026 Abacus Accounting Center LLC

website powered by Rightworks