Susan J. Kellner graduated Summa Cum Laude from the University of Buffalo in 1978. She was a member of Phi Beta Kappa and Phi Eta Sigma. She received her Juris Doctorate degree from the University of Buffalo in 1981. Mrs. Kellner was admitted to the Florida Bar in 1981. After being admitted to the Bar, Mrs. Kellner specialized in real estate and corporate law.

Mrs. Kellner now concentrates her practice in insurance defense. She joined Adams, Coogler, Watson, Merkel, Barry & Kellner, P.A. in 2004.