How About This asks: "Typically contractors are considered unsecured creditors, and if a company is having financial problems it is the unsecured creditors that usually lose out the most, or at least that's my understanding. Is it possible for a contractor that did software design and programming work to file a lien against a company for not paying for work performed? My searches have revealed references to mechanic's liens against land and property, but nothing directly with technology/computer related areas. Anyone have any links to sites or pages with this information? Or references to good (CA) lawyers in this field that can explain things (and has a reasonable initial consultation fee since obviously money is in short supply)."