In the United States, we follow the American rule of law. This means that every party pays their own legal fees. If you get summoned to court and you hire an attorney, you will have to pay the legal fees.
You got a “Summon” and a copy of a lawsuit it the mail from a company you never heard of claiming you owe them money. Hmmm, you ponder as you scratch your head, then you remember a credit card debt from years ago that you thought disappeared. It wasn’t this much, what happened!!