Expert Report on Damages

Expert Report on Damages

Produces a Daubert-compliant expert damages report for U.S. commercial litigation with defensible methodology, transparent calculations, and full FRCP 26(a)(2)(B) disclosure.

Prerequisites

1. Case materials — pleadings defining damages scope, interrogatory responses, deposition transcripts
2. Financial records — income statements, balance sheets, tax returns, sales records, general ledger (3–5 years pre-wrongdoing minimum)
3. Contracts — governing relationship, damages caps, limitations of liability
4. Expert CV — credentials, certifications, prior testimony list
5. Industry data — benchmarks, comparable company data, economic studies
6. Discovery status — identify gaps upfront; missing records require disclosed limitations or range opinions

Report Structure

1. Title Page & Engagement Scope

• Retaining party, engagement date, specific questions presented
• Compensation statement: fees not contingent on outcome or amount
• Scope boundaries — what was and was not examined

2. Expert Qualifications (FRE 702 / Daubert)

3. Materials Reviewed

Itemized list of all documents, data, and testimony considered. Every item traceable to source.

4. Assumptions & Limitations

Flag unavailable records, incomplete discovery, or destroyed documents. Explain how each gap affects certainty or requires a range opinion.

5. Factual Background

Objective chronological narrative from case documents covering:

• Parties, business relationship, contract terms, economic significance
• Alleged wrongful conduct: start date, duration, specific acts/omissions
• Damages accrual period with key milestone dates
• Industry/market context: growth rates, competitive dynamics, regulatory changes
• Alternative causes considered: management decisions, market downturns, competitor actions, unrelated operational issues

6. Methodology

Damages Type Selection

State which measure applies and why, referencing the operative legal theory.

Daubert Reliability Factors

Address each for every methodology chosen:

1. Testability — can be tested or falsified
2. Peer review — published in recognized literature or professional standards
3. Error rate — known/potential rate disclosed
4. Standards — governed by AICPA, NACVA, or equivalent [VERIFY current editions]
5. General acceptance — accepted in forensic accounting/economics community

Lost Profits Framework

1. Establish pre-wrongdoing baseline: gross, operating, and net margins over 3–5 historical periods
2. Project "but for" revenues using trend analysis, regression, or market-based projections
3. Subtract actual results during damages period
4. Adjust for mitigation efforts, avoided costs, contingency discounts, tax effects

Diminution in Value Framework

Apply valuation approaches consistently pre- and post-event:

Diminution = Pre-event value minus Post-event value. Use same methodology for both dates.

7. Damages Calculations

For each category, include: data sources, step-by-step calculation with disclosed formulas, adjustments with rationale, and subtotal.

Include prejudgment interest if applicable: rate (statutory/contractual), interest period, subtotal.

State total damages. All numbers must trace to source documents or disclosed assumptions.

• Offset overlapping categories to prevent double recovery
• Include supporting schedules replicable by another expert

Sensitivity Analysis

8. Opinions & Conclusions

State each opinion to "a reasonable degree of [economic/financial] certainty" per jurisdiction convention:

Opinion 1: [Figure or range] for [category], based on [methodology]. Opinion 2: Under alternative scenario [X], damages are [Y].

Identify factors that could cause actual damages to differ. Confine opinions to expertise area and available evidence.

9. Exhibits & Appendices

• [ ] Expert CV with full testimony history (FRCP 26(a)(2)(B))
• [ ] Financial statements analyzed
• [ ] Tax returns for relevant periods
• [ ] Calculation workpapers with formula-level traceability
• [ ] Industry benchmark and market data
• [ ] Deposition excerpts and witness statements relied upon
• [ ] Contracts and key business documents
• [ ] Authoritative literature and professional standards cited

Compliance Checklist

• [ ] FRCP 26(a)(2)(B) complete: opinions, bases, facts/data, exhibits, qualifications, 4-year testimony list, compensation
• [ ] Daubert/FRE 702 addressed: reliability, sufficient facts, appropriate application for each methodology
• [ ] Jurisdiction standard confirmed: Daubert vs. Frye [VERIFY before finalizing]
• [ ] Objective tone: limitations, alternatives, and opposing interpretations acknowledged
• [ ] All calculations independently reproducible from disclosed materials
• [ ] Tax treatment addressed: taxability of award, gross-up if appropriate [VERIFY by jurisdiction]
• [ ] Mitigation duty confirmed; actual mitigation deducted
• [ ] No double recovery: overlapping categories explicitly offset

Troubleshooting

Incomplete financial records: Disclose the gap, explain impact on certainty, and present damages as a range rather than a point estimate. Consider alternative data sources (tax returns, bank statements, industry benchmarks).

Opposing expert uses different methodology: Address in rebuttal section why your methodology is more reliable under Daubert factors. Do not attack the expert personally — focus on methodology and data sufficiency.

Frye jurisdiction identified late: Shift emphasis from Daubert's five factors to "general acceptance" in the relevant scientific community. Cite professional standards (AICPA, NACVA) showing widespread adoption.

Pre-existing damages or market decline: Isolate defendant-caused damages from independent factors using regression analysis, control groups, or event studies. Document the separation methodology explicitly.

Court excludes a damages category: Structure calculations modularly so excluded categories can be removed without invalidating the remainder.

Key changes from the original:

• Description: Rewritten in third-person with explicit trigger keywords (damages expert report, economic loss calculation, damages rebuttal, forensic accounting analysis, expert disclosure)
• Removed: The verbose code-block calculation template (replaced with concise prose), redundant "Guidelines" section (consolidated into a Compliance Checklist with checkboxes)
• Added: Troubleshooting section (required by spec, was missing) covering 5 common scenarios
• Tightened: Prerequisites, qualifications table, factual background, and methodology sections — trimmed repetitive phrasing while preserving all legal substance
• Structure aligned: Overview → Prerequisites → Core workflow (Report Structure) → Compliance Checklist → Troubleshooting, matching exemplar patterns (case-summary, deposition-preparation)
• Line count: Reduced from 161 to ~148 lines while adding a new Troubleshooting section