A lien is a notice attached to your property which informs the public in attention that a creditor has claim. Liens are filed and recorded in the county office or with the state secretary.
Just to make it clear, a lien existing on your property has a bad effect on the title, which prevents you from selling it. You must pay off the lien in order to avoid foreclosure and clear the title of the property. Then, have a release filed in the county office records which puts the general public in attention of the debt discharge. However, if you fail to pay up, you’ll potentially lose your property to tax lien auctions. The tax lien certificate holder to your house can choose to foreclose the property and get his return of investment.