If the government or a bank forecloses on a property and sells it, they can only keep the amount owed by the debtor plus the administrative costs of processing the foreclosure.
The relevant Minnesota law has an unusual aspect to it when it comes to government seizures. In this case, the property was considered abandoned after a lengthy process to try to collect the outstanding taxes. Because it was an abandonment and not a foreclosure, there is a legitimate question about whether the debtor was owed anything at all. The courts ruled that she had effectively relinquished any claim to the property by allowing the process to go on for so long.
This is why she hasn't prevailed in any court during the trial and appeal process.
I question whether the county provided upfront and plain English explanations of the process. Or even if all notices were actually sent.
Bureaucrats consistently do what is easiest and even that, they do poorly.
I lack faith in the process and the system.