We are a subcontractor, that hired a subcontractor to work on three different projects. We found out after the fact that the Sub had contracted the work to another party, who then hired the end worker. We have paid 90% of our contract to our sub, but now after the work has been completed, we found out that the end worker was not paid a penny. Now that worker can not reach anyone other than us, and is now threatening to lien the project. We have fulfilled our obligation to our subcontractor (before he disappeared), but the worker is now shaking us down with threats of liens. We don't want to let a lien happen which would hurt our reputation with our customers. 1. What can we do to track down the subcontractor that we paid, and make him pay the worker that he hired? 2. We still owe our sub roughly 10%, but we obviously don't want to pay it to him until we have confirmation that he's paid his worker. If we pay that 10% directly to the worker, what can we do to guarantee that he doesn't lien the store to get the remaining balance of what he's owed?