So, I'm going to add home ownership to the list. The TL;DR version of what I found is:
In 1995, Dani and Murray bought a place in Coweta County.
In 1997, they....remortgaged or something? (Apparently
a security deed is like a mortgage, except the bank can repo your house without taking you to court)
In 1998-1999, the bank took ownership of the house
In 2000, someone (seemingly unrelated to the Roots) bought the house from the bank
I'm not sure what that cancellation is in March of this year, and I'm also not sure about the Lien info from 2011-2012. That might be for a different property, but if it is, I haven't found it yet. (Pure speculation: It might be for a mobile home? GA seems to treat mobile homes and actual houses different as far as SDAT is concerned. ) It also seems that Murray either 1) no longer lives in GA, or 2) is living in a home that is owned by someone else.