A lien is a property interest that a health insurance company, or the state or federal government, has against the proceeds of a personal injury settlement or verdict. Various governmental entities can also assert liens for money previously paid to individuals who later obtain a settlement or verdict. Those entities can be, for instance, the Pennsylvania Department of Public Welfare for child support, cash assistance, or medical assistance. Other entities can include Medicare and Medicaid. Workers compensation carriers always have a lien against the proceeds of a settlement or verdict. There are specific rules that apply to all liens, including how they can be asserted in a personal injury case, and how they can be resolved.