Final answer:
An attachment lien is a legal claim on a property that can secure a debt. The validity of an attachment lien varies depending on the jurisdiction and can expire after a certain period of time if not extended by court action.
Step-by-step explanation:
An attachment lien is a legal claim on a property that is typically used to secure a debt. The validity of an attachment lien varies depending on the jurisdiction. In some cases, an attachment lien may expire after a certain period of time if not extended by court action. For example, in California, an attachment lien is generally valid for two years unless extended by court action.