In Florida if I as the plaintiff in a criminal case have been called upon by the defense attorney to a deposition and I refuse

While I do not have a specific answer to your question, a good place to start would be to contact the prosecuting attorney. They should be able to...

Is this "abuse of process" or some other claim? (Fraud? etc) that can be brought against counsel in litigation?

You should have you work comp attorney or, if you don't have one, an independent attorney review this situation for you. Abuse of process claims...

I have a defense lawyer working on my case. I want to file a cross claim. My question is do I have to hire another lawyer to

It depends on a multitude of questions, and the facts involved in each case. Primarily you should do as the other posters have suggested and speak...

Most practitioners "meet and confer" by first drafting a letter or making a phone call to the opposing side. Generally, "meet and confer" efforts...