Multi-Conditional Conditional Formatting and Dates

I have a long list of dates on each row:

1] 26/01/15, 26/02/15, 26/03/15, 26/04/15,26/05/15
2] 3/02/15, 3/03/15, 3/04/15, 3/05/15, 3/06/15, 3/07/15, 3/08/15, 3/09/15
3] 19/12/14, 19/01/15, 19/02/15, 19/03/15
4] 10/06/15, 10/07/15, 10/08/15, 10/09/15, 10/10/15, 10/11/15, 10/12/15, 10/01/16

And so on.

I will be going through each row manually (several times a week most likely) to find any dates that have passed, sending out letters to the appropriate contract numbers (each set of dates is linked to a contract number), then deleting the date that has passed. This set of dates are my reminders of when to send out the letters and I cannot have them deleting automatically (if I went on holiday for instance and had to miss a few weeks), so I need them there for me to look through until I delete them myself.

The problem I am currently having is with my conditional formatting. To make it easier to find the contracts that have a letter due I want the row to highlight if there is a date on it that it before the current date. This bit is working fine. The problem arises when I delete the date and it remains highlighted, I think this is because of how I have written my conditional formatting. It checks all the dates in a row against the current date and if any are less than the current date, it highlights the row... This means when I delete a date it is technically still less than the current date.

I've tried writing several different multiple criteria Conditional Formats but none seem to be working for me! Could someone lend a hand with a fresh set of ideas??
Thanks!

(Sheet 2)

This is where I may not have explained myself well enough.
I need to delete the past dates so that the CF will highlight all the rows with dates that need to be looked at (deleted) and then un-highlight them once I delete them (because they've been checked). Hiding the past dates from view will help me see where I am with each contract but it will not help me find which contracts need my attention (bearing in mind this spreadsheet will have 100's of rows once completed).

If I can have the CF work, highlighting the ones that need my attention, without the need to delete old dates, that would be even better but I don't see