A Wyoming mechanic’s lien is used by contractors, suppliers, engineers, and architects to seek compensation on a construction project wherein the owner has failed to compensate for labor or materials. A lien document contains the type of work/materials provided, the length of the contract, the amount of compensation the claimant is owed, and information on the owner and the property. Once the owner receives notice that a lien has been filed against the property, they must either attempt to resolve the issue or dispute the claim. Otherwise, the claimant may enforce the lien by filing a lawsuit, which may cause a foreclosure on the property.

Before a lien can be filed, subcontractors and suppliers must provide preliminary notice of their right to claim a lien to the owner and prime contractor within thirty (30) days of the commencement of work or supplying materials. For prime contractors, the preliminary notice deadline is twenty (20) days prior to receiving payment from the owner.