Auditing legal bills from a commercial litigation firm requires a systematic review of invoices to ensure transparency and budget alignment. To effectively audit your legal spend, follow these strategies based on standard billing practices:

1. Request Detailed Billing Entries: Ensure each invoice includes granular descriptions of the work performed. Avoid "block billing" where multiple tasks are lumped into a single time entry, making it difficult to verify efficiency.
2. Verify Professional Levels and Rates: Use your retainer agreement to confirm that the rates charged for partners, associates, and paralegals match the agreed-upon schedule. Ensure that tasks are being handled by the appropriate level of experience to avoid paying partner rates for administrative or junior-level work.
3. Monitor Billing Increments: Confirm that time is being tracked according to the agreement (commonly in 0.1-hour or six-minute increments). Frequent rounding up can significantly inflate total costs.
4. Scrutinize Pass-Through and Administrative Costs: Review third-party expenses such as:

• Discovery and E-Discovery: These are often the largest variables and should be itemized separately.
• Expert Witness Fees: Verify these against the expert’s specific hourly rates.
• Administrative Overhead: Confirm whether the firm is charging for internal expenses like copying, travel, or overtime, and ensure these charges are permitted under your fee agreement.

1. Compare Against the Phase-by-Phase Budget: Regularly measure actual invoices against your initial litigation budget for each phase (Pleadings, Discovery, Trial Prep, and Trial). If costs exceed the budget by more than a 15–30% contingency reserve, request an immediate explanation for the overrun.