So, today I got a call from DCS at my business: they are trying to track down debt from an old owner of a similar business at that address. They claim my business is liable for it. I explained that we purchased the ASSETS only from the IRS. The IRS was seizing the business and we negotiated to buy the ASSETS ONLY, not the business. We have a separate FEIN, two owners who have nothing to do with the prior owner, and even have a different name to the business.
They said I have to fax them a copy of the Bill of Sale or else I am liable for the debt and the will come after me.