Public Auction
https://www.fairfaxcounty.gov/taxes/pay/auction-real-property
Auctions of real estate properties are initiated when all other collection attempts have failed. If real estate must be sold to collect delinquent taxes, any tax sale would be handled by the county's contracted legal firm for such collections, with oversight from the Department of Tax Administration
Please note, the Code of Virginia does not authorize the sale of tax lien certificates. Sales only occur at public auction, and the sale conveys title to the property itself.