Same story here - someone from "LLS" called and left a message at my in-laws' looking for me by my maiden name (at least 6 years old at this point), left a "case number" and were threatening implausible legal action. I have no past due debts and at this point anything that old would be timebarred anyway. I called the number to tell them to stop calling and the accented man who hadn't otherwise identified himself or the company stated they were a "law firm" and that I "could not" just tell them to stop calling. I filed a complaint with my state's attorney general's office online. This company is in Los Angeles.
Note: I'm listing this type as "debt collector" since that's what they're purporting to be, but think that even that lends too much credibility to this type of scam.
Someone from this.number called my disabled infirmed father trying to get money in two hours to stop some law suit against me. I am not being sued by anyone.
I just received the same call from the same number telling me that I have legal documents that need to be taken care of before further legal action is taken. It's a scam!
Received a call from 323-489-8397. They knew my SSN and more about me and that I had owed a sum of money 10 years ago. Did some checking - it is a scam.