A mechanics' lien can be a powerful statutory device available to unpaid materials suppliers, subcontracts and contractors on construction projects. It's power, if done properly, is from:
1) placing an encumbrance on the real property;
2) often freezing the construction financing, preventing the real property from being refinanced out of a construction loan or preventing the real property from being sold; and
3) providing the lien claimant an avenue to recover attorneys' fees.
In most scenarios, these pressure points are greatly effective at bringing attention to your claim and getting you paid.