My question involves collection proceedings in the State of: FL

I've been out of country for 2+ yrs, I have several credit cards balances in debt collections. I've been ignoring their calls all this time; I can't afford to pay them. However I'm thinking off moving back to the US and if so intend to repair my credit, which means dealing with these issues upfront. There must be some judgements against me for these, if so how do I remove them?? who would I contact, credit card company?