I am a subcontractor that has done work at an hospital. They were billed back in January for the work performed. We did go back 3 weeks ago to correct a issue they were experiencing that is associated with the work performed in January. Can I still file a notice of intent and if I receive no responds if necessary file a lien. We were informed that they may be filing bankruptcy. I need to know how to protect my company from not receiving payment. I have never experience having to file a notice of intent/lien before. So I don't have a clue where to begin. I can use as much help as possible to resolve this issue. Thank for any help you can provide.