Of course you get a lawyer before it goes to court. However you can do the first round without a lawyer. Just a simple letter saying you dispute a claim is enough in some cases to tell the others you are serious. If you get a response after that, then find a lawyer.
You could probably get a response letter drawn up probono by the EFF for the initial claim - but honestly that response letter would likely cost you less than 100$ to have drawn up by a lawyer which is likely a more valuable way for you to spend your time to make sure everything is perfect.