I just checked them online and found four deeds in Franklin County (Columbus), Ohio.  I will check in the morning at the courthouse to see if they have filed mortgage releases.  I am sure the recorder will give me free certified copies when I tell them the reason.  We will check our other counties as we get to them.  I also plan to inform the auditors office to watch for these names when they are doing transfers and to make note of who brings them in.  I will of course instruct the recorder to give me notice if a power of attorney is filed in any of the names we have.
I'm surprised that the FBI has not sent notices to all the counties to alert them directly to give notice of any filings.  Maybe they have, I will ask in the morning.