- Client goals for the case
- Law firm and lawyer experience with litigation costs for cases of this type
- External sources of experiential information such as the American Intellectual Property Law Association Economic Survey
- Tasks expected to be performed during the case
- Case timeline
The author concludes that one of the most reliable indicators of case expense is the amount of time from filing the complaint to verdict. But, "No matter how carefully the five budget sources are used, no budget will be satisfactory unless client and counsel understand the assumptions and expectations that went into the budget."