+1 (352) 432-8104

Experienced Team


Founder, CEO & Principal

Kerry started Abacus Business Solutions, LLC over 7 years ago and continues to lead and guide her team to success.

She has Higher National Diploma in Business and Finance, Certified in QuickBooks, Member of American Institute of Bookkeepers, and over 20 years of bookkeeping experience including construction, travel, restaurants, events management, and other various professional services. Previously certified Profit First Professional specializing in accounting, payroll and financial reporting for professional services and construction services.

Kerry and her team help relieve the stress of finances for business owners so that they can grow their business and take it to the next level.



Executive Assistant

Amanda is the Executive Assistant to the Founder & CEO, Kerry Postel and Administrative Team Support for Abacus Business Solutions, LLC with 25 years experience in business administration and office support. Prior to Abacus Business Solutions, LLC, Amanda spent several years building her career history working with law firms, government entities, small and local businesses, and corporate firms.

Amanda specializes in helping organize and stay on top of the administrative duties in the office to achieve a non-stressful environment in the workplace and to assure daily tasks and important deadlines flow easily with full completion.

Definitely not a stranger to Lake County, Florida. She is a lifetime resident from Groveland and has resided on the same 8-acre property for 41 years. She is an Honor Graduate and was the second graduating class after the historical rival schools of Groveland and Clermont combined as South Lake High School. Amanda is a single mother of two beautiful children. She has an older daughter (who also graduated from SLHS) and a younger son (who will attend SLHS 2021-2025). Amanda is also a Gam-Gam (too young to be a grandma) to a precious little granddaughter!



Accounting Pro Team

Tiffany has always enjoyed working with numbers. She began her accounting experience as an entry level data clerk for Central Florida Investments/Westgate Resorts and spent many years moving around to different accounting departments to learn the full cycle accounting process. She then entered the non-profit accounting world and spent the next 15 years working for a few local Churches and volunteering for many local non-profit groups.

You probably know her name before her face – as Tiffany enjoys her time in her home with family.

Tiffany is a long time local having lived in Clermont for over 40 years. She remembers the orange trees for miles and the fact that Taco Bell was a quick 15-minute trip to Winter Garden. She loves reminiscing about her small town, but she also appreciates the BOOM that it is now. She lives in Clermont, Florida with her husband, two miracle daughters and their pup Leia.



Accounting Pro Team

Theresa has a BA of Arts in Business Economics. She worked for a non-profit for 2 years doing financial analysis and invoicing. She also put in 10 years working in the defense industry in multiple roles including invoicing, cost analysis, auditing, contract accounting, accounts receivable, and regulatory compliance.

Theresa has been a teacher in the Clermont area for over ten years teaching various subjects including Business and Careers. She lived outside of Washington DC for over 10 years. She now lives in the Clermont area and has resided here for over 15 years.

Theresa’s husband owns his own software development company for over 20 years, which she has done all the accounting for.



Author, Entrepreneur, Lecturer

Mike is the entrepreneur behind three multimillion dollar companies and is the author of Profit FirstThe Pumpkin Plan and what BusinessWeek deemed the entrepreneurs cult classic, The Toilet Paper Entrepreneur. He is a former small business columnist for The Wall Street Journal, speaks internationally on entrepreneurial topics, and is the creator of the Profit First method. Mike is an active adviser on Profit First to our firm.

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