For years on Conditional Progress releases we have used a cumulative total. Ex, apr. invoice (open) #$15.00, may 20.00, & june 35.00 so when doing the rel. thru 6/30/19, the amount that I use is $70.00 as being due. Is this correct? Your article that I read was, How can I provide a lien waiver for a soecific month, when the previous months are still owed Thank you, Pam