There was a recorded message stating that someone (not me) has had allegations reported against them and that "Cornerstone" would hunt them down and locate them.

Usually this number just hangs up when I answer. I have no idea what the heck this is- maybe a scam?

Get calls from them all the time. Dont bother to answer.

Same type of message..... Threats to someone else...Cornerstone

They just called my phone with the same recorded message. I clicked 0 and spoke with a man who didn't really make any sense in why he was calling. And he got frustrated when I told him that it was really unprofessional for a company to call someone's phone stating that their attempting to hunt someone down. He got really unprofessional and started to say well whatever this is the phone number that was listed and we're gonna keep calling... I then hung up on him. I believe that this is a scam because he was a bill collector they wouldn't have disclosed any information to me in initial contact with verifying my identity...

There is no such business listed in DC. Scammers! Block their phone number.