A more thorough explanation:

A landlord's lien is a legal right that allows a landlord to take possession of personal property left behind by a former tenant and sell it to cover unpaid debts owed under the lease. This right was recognized under common law, but it no longer exists in most U.S. states. However, some states have enacted statutes that provide similar rights to landlords.

For example, if a tenant moves out of an apartment and leaves behind a television and a couch, the landlord may be able to sell these items to cover unpaid rent or damages to the property. In some states, the landlord must follow specific procedures to take possession of the property and sell it, such as providing notice to the tenant and holding a public auction.

It's important to note that a landlord's lien only applies to personal property left behind by the tenant. It does not give the landlord the right to take possession of property that belongs to the tenant or to sell property that is attached to the rental property, such as fixtures or appliances.