Based on the article I posted, the property taxes ($200) were unpaid from 2004 to 2010. The neighbor noticed a county auction notice posted on a tree and bid on the property and got it. Apparently, the neighbor never notified the homeowner that they owned it and the home owner found out in 2013 after for paying insurance, lawn service, and other stuff during the time she didn't even own the property. The neighbor has offered to sell it back for a lower amount which the mortgage company has agreed to pay, but the homeowner wants the original seizure voided in court.
I find it hard to believe that the taxes went unpaid for that long and the homeowner never was notified. The article said she paid directly before turning it over to escrow in a refinance in 2004 so the county knew where to send the bills. Of course, it sounds like she never looked at the escrow account information to see both bills were paid.