Roll Assgnment - Items per month count

I'm in need of assistance, I've been working on a roll up that tracks documents from date closed to recording date, then from recording date until image date, I been working this alot.

I also wanted to make improvements to show how many items I received on a month to month basis and how many of those items clear in the same timeframe.(Maybe Vlookup against old worksheet) Any suggestions for improvement?

Anyone willing to take a peak?