Do I need to file 1 or 2 mechanics liens?

I'm a subcontractor. My contractor has 2 invoices that are due. He gave me a check for 1 invoice but not the second. The 1st check will not be "cleared" by my bank until several days after the mechanic's lien needs to be filed. The contractor is notorious for writing bad checks. Do I need to file 2 separate mechanics liens, one for the 1st invoice (that I have a check for but hasn't cleared) and 1 for the remaining outstanding balance? Or do I file 1 lien for the entire amount? Thank you