This news article based in Weirton, West Virginia gives a valid description of the reasoning behind filing a Mechanic’s Lien. Kokosing Construction Co. had done work on the Weirton Port, however they were never paid for their labor. They filed the mechanics lien for $513,350, which is the balance due to them. Before they filed the lien though, they filed a notice of lien. This basically tells the owner, and contractor, and any lenders that they are planning on filing a lien, and soon, if they do not receive their payment. The lien is filed against Weirton Area Port Authority, and this lien is apparently not their only claim of non-payment the company. They were sued once before for the same thing.