Back to top


Our Team

Mary Beth Gary, CPA, CFP® - Managing Director

Mary Beth Gary has over 30 years experience in public accounting. Mary Beth graduated Magna Cum Laude from Georgetown University in 1979 with a Bachelor of Science degree in Business Administration and attended Oxford University in England.

Mary Beth has previous involvement in many professional memberships including: President of the Brooksville Rotary Club, Founding Director of the Hernando County United Way, Chair of the Hernando County Chamber of Commerce Education Committee, Treasurer of the Downtown Development Corporation of Brooksville, Associate Member of the Hernando County Manufacturers' Association, Chairman of the Hernando County Business Education Advisory Council, and Member of the Board of Directors of the Hernando County Symphony.

In Hernando county, she is a member of the Board of Trustees of Hernando Healthcare and she is a member of the Advisory Board for the Humane Society of the Nature Coast. In Citrus County she is a member of the Chamber of Commerce, the Economic Development Council, Inc., and the Greater Inverness Olde Towne Association.

She is Chairman of Oliver & Company, P.A.'s Quality Control committee and serves as managing director. Her professional experience includes supervision of numerous engagements for commercial, not-for-profit organizations, and governmental entities. Other Firm responsibilities include federal and state tax return preparation for individuals and businesses, as well as management consulting and planning services.

Pamela Nix, CPA - Director

Pam graduated from St. Leo University in 2001 with a Bachelor of Arts degree in Accounting. She joined the firm in January 2002. She received her CPA license in 2013 and has 14 plus years experience in accounting, payroll, sales tax and both business and individual taxation, with an emphasis in tax planning.

She became a director in January 2014.

Pam presently serves as Treasurer for Nature Coast Trail Blazers and is an active member of the Suncoast Trail Blazers and Florida Trail Riders.

Professional memberships include Florida Institute of Certified Public Accountants and the American Institute of Certified Public Accountants.

RuthAnn Green, CPA - Accountant

RuthAnn graduated Summa cum Laude from Towson University with a Bachelor of Science in Accounting in 1998. In November 1999, she received her CPA license from the state of Maryland. RuthAnn joined Oliver & Company in December of 2013.

She prepares monthly financial statements, payroll, sales tax and tax returns for business and individuals.

Professional memberships include American Institute of Certified Public Accountants and Maryland Association of Certified Public Accountants.

John Martz, MBA, CFP® - Accountant

John graduated from Stetson University with a Bachelor of Business Administration, concentration in Finance. In June of 2012, he graduated with distinction from Keller Graduate School of Management with his Master of Business Administration with a concentration in Accounting. John has three years of experience preparing tax returns, and joined Oliver & Company, P.A. in February 2013.

Karen Dzafic - Administrative Assistant

Karen has been with Oliver & Company, P.A. since 1984. She has a broad range of experience in accounting, employee payroll, accounts payable, accounts receivable and marketing.

Michelle Cohee - Bookkeeper, Adminstrative Assistant

Michelle started with Oliver & Company, P.A. in January of 2013. She works closely with the accounting staff in the day to day operations of the office to efficiently handle the processing of payroll and income tax returns. She has also begun to take on some bookkeeping responsibilities.