RUN AWAY! <g> I did this with a client a long time ago. It was a nightmare on more than one level. We agreed to a price for a file that closed and then a heavily discounted price for one that did not close. They were billed every month and paid Net 30 .. but pretty much paid what they felt was due. They never paid the amount invoiced or for the files that were on the invoice.  How were we to keep track of what closed? And how long was a file "out there" before a decision had to be made? What if if didn't close in two months, so the discounted price was paid. Then, lo and behold! A closing! But .. according to their system we'd already been paid for that file.

 It might be an (anticipated) accounting nightmare for their CFO, but I think it be definite nightmare for you!

Michelle