Property attachments, such as liens, are legal documents that are attached to a property to secure a debt or other obligation. Liens are typically used when a borrower fails to make payments on a loan or other debt. They give the lender the right to take possession of the property if the debt is not paid. Liens can also be used to secure payment for services rendered or goods sold. Liens are a common form of property attachment and are often used in real estate transactions.