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About Our Firm

About Our Firm

For years, Tilley, Callahan, Speiser & Associates, CPAs has been providing quality, personalized financial guidance to local individuals and businesses. Tilley, Callahan, Speiser & Associates, CPAs's expertise ranges from basic tax management and accounting services to more in-depth services such as audits, financial statements, and QuickBooks set-up, support and training.

By combining our expertise, experience and the team mentality of our staff, we assure that every client receives the close analysis and attention they deserve. Our dedication to high standards, hiring of seasoned tax professionals, and work ethic is the reason our client base returns year after year.  Our clients are like an extended family to us!

Our Mission

TCS, CPA is a team of professionals working to advise business owners how to develop a strong understanding of their business, which allows them to make educated decisions, to help achieve their desired level of success. 

Core Focus

Advising business owners to make informed business decisions so they can make their dreams a reality! 

Points of Culture

  • Accountable 
  • Respectful
  • Positive 
  • Present in all Situations
  • Passionate for Our Client's Success
  • Open and Honest in All Communication
  • Open to New Ideas & Solutions
  • Team Players
  • Make Accounting Fun! 


Our Team

Erica Speiser, Managing Partner Bachelor of Business Administration, Accounting - Saint Leo University

Tina Callahan, CPA Master of Business Administration - Upper Iowa University
Certified Public Accountant

Michelle Pierson, CPA Bachelor of Business Administration, Accounting - University of Hawaii
Certified Public Accountant

Kim DeLettre

Tina Pressley

Zach Courson Bachelor of Business Administration, Accounting - University of North Florida

Tricia Fernish

Roxann M. Bachelor of Business Administration, Finance - University of North Florida