I know that some states do not allow any type of fee to be assessed to a dormant account but I can't find the information for Tennessee. My CEO and CFO want to start charging a dormant account fee and I want to make sure that we are in compliance with all laws. Can anyone tell me where I need to look for this information?

Have you read this document? It should give you everything you need:

http://www.treasury.state.tn.us/unclaim/UCPBOOK2006.pdf

Pay attention to: 66-29-152. LAWFUL CHARGES OR DEDUCTIONS - NOTICE.