I am a subcontractor on a project hired by a GC. with change orders that have not been paid for material that has been purchased. Also have an outstanding balance on original contract scope. Today I was informed my company is being removed from the project.
Your problem could be handled a couple of ways, but it's a little fact specific. Jump on a call with a construction attorney and they can probably talk you through some of this and give you some ideas on how to handle. That may be liens or a straight breach of contract action.