prs asked"I'm about to buy a 97 Regal 2100 LSR from the Tampa area. I intend
to usein fresh water. Is the salt-water use anything to be concerned about?"

Wow. You don't give us much to work with. Is the boat outboard powered? I/O?
Freshwater cooled? Stored on a trailer or in a slip?
Come on, you know much more about your boat then we do, and you ask OUR advise?

Salt water usage CAN be a problem if the boat wasn't properly maintained.
But you will have to determine that, or ask a local who knows what he/she is
talking about.
Best of luck
Mike