A Florida native, Dr. Lawrence Duffy graduated from Bishop Moore High School. He graduated with a Bachelor of Science degree at Florida Technological University (UCF) in 1977, and subsequently obtained his dental technician training from Southern College. Dr. Duffy actively owned and operated a dental laboratory in Longwood, Florida for three years. In 1981, he was accepted to Washington University School of Dental Medicine in St. Louis, Missouri and received his Doctor of Medical Dentistry degree in 1985. He then returned to Orlando to begin his dental career.