We are a small company that started in November 2019. We engaged a subcontractor on a Cellular construction project. The subcontractor worked without a PO but submitted Invoices which we have been paying on time. Recently, they took off with the clients equipment (worth $30k) and now are threatening liens on sites if we don't pay them the balance ($32K) of their invoices. One of these invoices came due on 6/1 and the other comes due for payment on 6/8. We have sent them Conditional release of liens and have committed in writing (via email) to pay the agreed balance monies but the subcontractor refuses to sign the conditional release of liens until full payment is made. We have a feeling that the subcontractor will file liens to extort money out of us once we make full payment against these invoices. Questions - 1. Can they file a lien? They don't have a PO. 2. What are our options in this case? We need help! We are contemplating doing a police complaint against the material they took without anyone's permission. Thanks!