How to Evaluate a Financial Expert Witness for Litigation

What counsel should weigh before retaining

For attorneys, evaluating a financial expert involves more than reviewing accounting or finance credentials. Counsel may also want to consider whether the expert's experience is relevant to the issues in dispute, whether the proposed analysis can be supported by the available information, and whether the expert can explain the methodology and limitations of the work clearly.

In federal cases, Federal Rule of Evidence 702 provides a framework for the admissibility of expert testimony. The rule addresses whether an expert is qualified, whether the expert's specialized knowledge will help the trier of fact, whether the testimony is based on sufficient facts or data, whether reliable principles and methods are used, and whether those principles and methods have been reliably applied to the facts of the case. State courts may apply different rules or standards.

For that reason, counsel evaluating a financial expert witness may wish to consider several factors before deciding whether the expert is appropriate for a particular matter.

What is a financial expert witness?

A financial expert witness is a professional with specialized knowledge in areas such as accounting, finance, valuation, damages analysis, or financial investigations who may provide expert opinions or testimony relevant to a legal proceeding.

Depending on the matter, a financial expert may analyze financial records, calculate economic damages, perform a business valuation, examine financial activity, trace assets or funds, evaluate financial assumptions, or review another expert's analysis.

The scope of an expert's work depends on the issues presented and the terms of the engagement. Experience in one area of financial analysis does not necessarily mean that a professional has the same experience in every other area.

1. Relevant experience with the issues in the case

One of the first considerations is whether the expert has experience that is relevant to the financial issues involved in the case.

For example, an attorney handling a lost profits claim may look for experience with economic damages and financial analysis. A shareholder dispute may involve business valuation issues. A matter involving suspected financial misconduct may require experience with forensic accounting or financial investigations.

Relevant experience can help counsel assess whether the expert's background is appropriate for the particular assignment.

Questions may include: - Has the expert worked on matters involving similar financial issues? - What types of financial analyses has the expert performed? - Does the expert have experience with the relevant industry or type of business? - Has the expert addressed similar damages, valuation, or forensic accounting questions?

The objective is to understand whether the expert's experience corresponds with the financial questions that need to be addressed.

2. Appropriate financial specialization

The term "financial expert witness" can encompass professionals with different areas of specialization.

Depending on the matter, relevant experience may include: - Forensic accounting - Economic damages - Lost profits - Business valuation - Financial statement analysis - Asset tracing - Fraud investigation - Business interruption analysis - Shareholder or partnership disputes - Financial analysis in divorce proceedings

An expert whose practice focuses primarily on business valuation, for example, may have a different professional background from an expert who regularly performs fraud investigations or economic damages analyses.

Counsel may therefore wish to consider whether the expert's particular area of experience corresponds with the financial question presented by the case.

For matters involving financial investigations or transaction analysis, attorneys may also review the firm's forensic accounting services.

3. Litigation and testimony experience

Financial analysis performed in connection with litigation can involve considerations that differ from ordinary accounting or business advisory work.

Depending on the assignment, an expert may need to review information produced during discovery, prepare an expert report, explain the basis for an opinion, participate in a deposition, or provide testimony at trial or another proceeding.

Prior litigation experience may therefore be relevant when evaluating a prospective expert.

Counsel may wish to ask: - Has the expert previously served as a testifying expert? - Has the expert participated in depositions? - Has the expert testified at trial or in other proceedings? - Has the expert prepared expert reports? - Has the expert reviewed or responded to opposing expert opinions?

The nature and relevance of prior experience may be more informative than simply considering the number of previous engagements.

For matters where testimony is anticipated, attorneys can review the firm's court testimony services.

4. Professional credentials and training

Professional credentials can provide information about an expert's education, training, and professional background.

Depending on the area of expertise, relevant credentials may include a Certified Public Accountant license or designations such as Accredited in Business Valuation, Certified in Financial Forensics, Certified Valuation Analyst, Accredited Senior Appraiser, or Certified Fraud Examiner.

The relevance of a particular credential depends on the expert's area of practice and the issues involved in the case.

Credentials are one consideration among many. They do not, by themselves, establish that an expert is appropriate for a particular assignment or that an opinion will be admissible.

Counsel may therefore wish to consider credentials together with relevant experience, methodology, factual support, and litigation experience.

5. Methodology and analytical approach

A financial expert should be able to explain how an opinion was developed and how the analysis relates to the facts and information available in the case.

Depending on the assignment, this may involve identifying: - The financial records reviewed - The relevant facts and assumptions - The analytical methods used - The calculations performed - The sources supporting significant assumptions - Limitations affecting the analysis - How the methodology was applied to the facts of the case

In federal cases, Rule 702 addresses whether expert testimony results from reliable principles and methods and whether those principles and methods have been reliably applied to the facts of the case.

Counsel may therefore want to understand not only the conclusion an expert expects to reach, but also the process used to reach that conclusion.

The firm's financial expert witness services provide additional information about financial analysis that may be relevant to litigation matters.

6. Adequacy of the underlying financial information

Financial analysis depends on the information available to the expert.

Depending on the assignment, an expert may review documents such as: - General ledgers - Financial statements - Tax returns - Bank statements - Payroll records - Invoices - Sales records - Contracts - Budgets and forecasts - Business records - Transaction records - Other financial information produced during discovery

Federal Rule of Evidence 702 addresses whether expert testimony is based on sufficient facts or data. Rule 703 addresses the types of facts or data on which an expert may base an opinion.

Counsel may therefore wish to discuss with a prospective expert what information will be needed for the proposed analysis and whether additional records may be necessary.

The amount and type of information required will depend on the financial question being examined. A business valuation may require different records from a lost profits analysis or a tracing assignment.

7. Independence and objectivity

Counsel may also wish to consider an expert's ability to provide an objective analysis within the scope of the assignment.

An expert's role is not simply to adopt a party's preferred position. The analysis should be based on the expert's professional knowledge, the information considered, and the methodology used.

During the selection process, counsel may want to ask how the expert approaches assumptions, limitations, uncertainties, and information that may not support one side's preferred position.

Potential conflicts of interest should also be considered before an engagement begins.

An expert should also remain within the appropriate scope of financial or accounting expertise. Legal conclusions and questions of law generally remain matters for counsel and the court.

8. Ability to explain complex financial issues clearly

Financial disputes can involve accounting records, calculations, valuation models, financial terminology, and substantial amounts of data.

Counsel may therefore wish to assess whether the prospective expert can explain the analysis clearly while maintaining the necessary technical detail.

Relevant considerations may include whether the expert can: - Explain complex calculations in understandable terms - Distinguish facts from assumptions - Identify important limitations - Explain why a particular methodology was selected - Connect conclusions to the underlying financial information - Respond clearly to questions about the analysis

Clear communication can be relevant when an expert prepares a report or explains an opinion during testimony.

9. Experience reviewing or responding to opposing expert opinions

In cases involving competing financial opinions, an expert may be asked to review another expert's methodology, assumptions, calculations, or conclusions.

Such a review may involve examining differences in: - Financial data - Accounting treatment - Valuation assumptions - Forecasts - Damages methodology - Calculations - Interpretation of financial records

An expert with relevant experience reviewing opposing opinions may be able to assist counsel in understanding where the analyses differ and which assumptions or calculations contribute to those differences.

The purpose of such a review should be a reasoned assessment of the competing analysis based on the available information and the expert's area of expertise.

10. Availability and ability to work within case deadlines

Availability can also be a practical consideration.

Financial expert engagements may involve substantial document review, analysis, report preparation, meetings with counsel, deposition preparation, and testimony.

Before retaining an expert, counsel may wish to discuss: - Relevant case deadlines - Discovery schedules - Report deadlines - Deposition dates - Trial or hearing dates - The expected volume of financial information - The anticipated scope of the assignment - Communication procedures with the legal team

Establishing the anticipated scope and schedule at the beginning of an engagement can help counsel and the expert understand the work involved.

Questions attorneys may ask before retaining a financial expert witness

A preliminary discussion with a prospective expert can help counsel evaluate whether the expert's background and proposed approach are appropriate for the matter.

Questions may include: 1. What experience do you have with cases involving this type of financial issue? 2. What financial records would you need to perform the proposed analysis? 3. What methodologies may be appropriate for this assignment? 4. What assumptions could materially affect the analysis? 5. Have you previously prepared expert reports? 6. Have you testified in deposition or at trial? 7. Have you reviewed or responded to opposing expert opinions? 8. Are there any potential conflicts or limitations that should be considered? 9. What information would you need from counsel before beginning the analysis? 10. What scheduling considerations should counsel anticipate?

The answers can help counsel understand the expert's experience, proposed scope of work, and approach before an engagement is undertaken.

When financial expertise may be relevant

A financial expert may be considered when a dispute involves financial questions that require specialized knowledge or analysis.

Economic damages

An expert may assist with calculations involving lost profits, lost income, business losses, or other claimed economic damages.

Attorneys can review the firm's economic damages services for additional information about financial analysis related to damages claims.

Business valuation

A financial expert may perform or evaluate a business valuation when the value of a company or ownership interest is relevant to the dispute.

This can arise in matters such as shareholder disputes, partnership disputes, certain divorce matters, or other proceedings involving closely held business interests.

Additional information is available through the firm's litigation business valuation services.

Fraud and financial investigations

Forensic accounting expertise may be relevant when counsel needs assistance analyzing financial records, examining transactions, or tracing funds.

The nature of the analysis will depend on the records available and the financial questions presented.

Shareholder and partnership disputes

Financial analysis may be relevant when a dispute involves ownership interests, distributions, valuation issues, damages, or disputed transactions.

Divorce and complex financial matters

Forensic accounting may be used to examine business interests, income, assets, transactions, or other financial information in complex divorce matters.

Contract and commercial disputes

A financial expert may assist when a breach of contract claim involves disputed damages, lost profits, financial projections, or other quantitative issues.

Whether an expert is appropriate depends on the facts of the case, the issues presented, and the applicable procedural and evidentiary requirements.

Financial expert witness vs. forensic accountant

The terms "financial expert witness" and "forensic accountant" can overlap, but they describe different aspects of a professional's role.

Forensic accounting generally refers to specialized financial analysis performed in connection with disputes, investigations, or other matters requiring financial analysis that may be subject to scrutiny.

A financial expert witness refers more specifically to the role a qualified professional may perform in a legal proceeding when providing expert opinions or expert testimony.

A forensic accountant may serve as a financial expert witness, but not every forensic accountant necessarily serves as a testifying expert. Financial experts can also have areas of specialization such as business valuation or economic damages.

The appropriate professional depends on the financial question counsel needs to address and the role contemplated for the engagement.

How Rule 702 relates to financial expert testimony

For federal cases, Rule 702 provides the framework governing the admissibility of expert testimony under the Federal Rules of Evidence.

The rule addresses whether the expert's specialized knowledge will help the trier of fact, whether the expert is qualified, whether the testimony is based on sufficient facts or data, whether reliable principles and methods are used, and whether those principles and methods have been reliably applied to the facts of the case.

The current version of Rule 702 also states that the proponent of expert testimony must demonstrate to the court that it is more likely than not that the rule's requirements are satisfied.

The rule was amended effective December 1, 2023. The amendments clarified the court's role in evaluating the requirements for expert testimony, including the sufficiency of the expert's basis and the reliable application of the expert's methodology.

The Federal Rules of Evidence apply to federal proceedings within their scope. State courts may have their own evidentiary rules and standards concerning expert testimony.

Counsel should therefore consider the rules applicable to the particular court and matter rather than assuming that the federal standard applies in every case.

Choosing a financial expert for a litigation matter

Evaluating a financial expert witness involves more than reviewing an accounting or finance background.

Counsel may wish to consider the expert's experience with the specific financial issue, professional training, litigation experience, analytical methodology, factual foundation, objectivity, communication skills, and availability.

It can also be useful to understand what information the expert would need, how the proposed analysis would be performed, and what limitations may affect the work.

A careful evaluation can help counsel determine whether a prospective financial expert's background and proposed approach are appropriate for the particular matter.

For cases involving complex financial evidence, attorneys may consider involving a financial expert early enough to allow appropriate time for document review, analysis, report preparation, and any required testimony.

Disclaimer

This article is provided for general informational purposes only and does not constitute legal, accounting, financial, or other professional advice. It is not intended to establish an attorney-client relationship or an expert witness engagement.

Rules concerning expert testimony, admissibility, disclosure, discovery, privilege, and related matters can vary depending on the court, jurisdiction, procedural posture, and circumstances of a particular case. The discussion of Federal Rule of Evidence 702 is limited to general information about the federal rule and should not be understood as a statement that the federal rule applies to every proceeding.

Attorneys and other readers should consult the applicable rules and qualified professionals regarding the requirements of a specific matter. Last reviewed: September 2026.