How to track time billed and client expenses paid but written off in Quicken H&B...

I'm not so concerned with time that is billed and paid - I created a category for Legal Fees Received with subcategories for each client - but the entries reflect payment after the fact. I am concerned with time billed but not paid, and written off. I can track client expenses generally because I pay that expense out of an account and then when the client pays me for that, they reconcile each other. But, sometimes I have expenses that are not going to be paid....how would you suggest I get those into a category to track just those expenses written off?