Cryptographic signatures paired with identity information makes all transactions easily verifiable for tax collection purposes. There are purposes such as proving ownership of a record anytime someone needs to that would be convenient if the records are accessible 24/7.
> Ransomware or other attacks are always going to be a risk, and the more municipalities that use a single system, the bigger a target it becomes, so smaller but properly secured and backed up systems have advantages.
If the past is any indication, local governments and small businesses have had a heck of time securing their IT systems. I would much prefer a hardened blockchain system to secure my property ownership record, than the current situation.