Open Question: in florida can they take my car over a bad debt?

jus wondering -my friend- told me that she is being sued for an old credit card debt. she is wondering if they can take her car?? it is paid off & worth more then the old debt. we live in florida. she has been supoened to appear for a deposition in a few weeks by the plantiff's atty..is there any way that she would not have to go?? IF they can take the car..can she jus add a co-owner to the title to stop this?? or would they put a lein on it so when she wants to sell it she has to pay the debt first? the car is the only thing she owns of value.