In some cases you won't even need that attorney. That costs money on their end too. Every once in a while you can stand your ground a bit and tell them to fuck off. I consulted one which was a waste of a small amount of money. It's amazing when they realize they have to spend a lot of money, and you are not going to back down. You don't even need an attorney to write a letter that says "fuck off". I've found when you meander around an issue like that, it's sometimes useful to go hard right out of the gate so the other side doesn't think you are a pushover. Although I generally prefer a more pragmatic and polite approach, there is a shock value that is useful.