The important thing is that you have done the right thing and told your side of the story. That you limit your responsability for anything further that your ex-husband might lie about is the important thing.
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As my law professor would say not a good idea, but you can do it. The lawyer is an advocate and not a witness so this relationship should have no impact. However, practically it puts your friend in a terrible situation if she breaks up with her lawyer.
Imagine additional questioning is in the works. Your husband should be very careful and excercise his right to silence until advised by an attorney.
Your boyfriend is serving time for the probation violation currently. From there it depends on how all these charges work themselves out.
Once he finishes his obligations to North Carolina then Florida will not have an issue. But that is assuming he clears up whatever is open in NC. If he doesn't a warrant will issue and follow him to Florida.