Oh, I see. You need elected officials willing to act in citizens favor, so no conservatives. Propose it at a meeting or petition its presence on a ballot. The process varies from county to county and city to city so that is why most leave it vague. The city or county then acts to take over the property, typically with aid of the sheriff. There, it is in the county or city records, it is a done deal. Appeals and such can be attempted and it varies from county to county, once again.