Michael J. O'Callaghan
Columbus Managing Partner
Columbus, OH
James D. O'Donnell
Associate
Sarasota, FL
Barbara C. O'Shaughnessy
Paralegal
Tampa, FL
Jessica Oehler
Andrew J. Oppenheim
Partner
Jason M. Ouimet
Senior Vice President of Federal Affairs, Shumaker Advisors, LLC
Washington, D.C.