We are the GC, our Subcontractor is threatening our customer directly to file a lien on their property. Customer has paid us an agreed upon discounted amount due to install issues, which we plan to pass on to Sub. Sub still has not submitted final invoice and just sent us his other invoices yesterday, but is already threatening our customer with a lien. The Intent to Lien notice is due in 2 days for this project in CT. I'm asking for any advice, as well as expecting the Sub to alter their last date of service to file any notices or liens. Any help is appreciated.