Any owner that is behind on their taxes for at least 2 years is on the tax sale list. That list, for York County, is actually readily and freely available online! With this delinquent tax list, he has access to all of the property addresses, as well as the owners’ names. The only additional step is to determine whether or not the address listed is the owner’s actual mailing address. However, this is quite simple: just follow the tax record trail to find the owner’s mailing address. Once Mikk has the owner’s actual mailing address, he sends them a quick letter.