Not unlike doctors where you need a different lawyer for your rash than for your heart transplant, good lawyers are specialized as well. It really depends on why you need a lawyer. If your husband has been arrested and is facing deportation, you need another lawyer as if you were to apply for a waiver. You really need to list your problem a bit more thorough.
When you are both under court orders to be in court, you have to go regardless of your protection order. You are supposed to behave with a certain decorum in court, and control yourself. Sorry, but they won't excuse your bad behavior (getting into the fight) because you had an order of protection. The type of lawyer you need is a criminal defense attorney. Hopefully they will just charge you with fighting in public. However, they could charge you with disrupting court proceedings and causing injury to a police officer, which is a felony.
The fact that you had an order of protection could help your case - they may consider it a mitigating factor and lessen the charges against you or lessen the punishment. It may be the factor that makes them give you the benefit of the doubt.
I just read your edit. I understand what you are saying. You need to get a criminal attorney to defend you against any charges. A good one will be able to point out that the court/mediator made the situation worse by putting you both in the same room. It may help you in charges against you.
If you are wanting to sue the court for putting you in the situation, I tried to explain above that your restraining order won't extend to a court. Also, government entities are usually immune from lawsuits. Your best bet is to protect yourself the best you can from here on out.
And I agree with you that it isn't funny. Good luck getting this cleared up, and remember that even with a protective order, you need to keep your hands to yourself. If you hadn't fought back, she would have been arrested for assault and you would have gone home. Next time you are both called to court together, tell a court officer immediately that you are concerned for your safety and would like additional security and protection. You can even request that someone accompany you to your car after a hearing.