Business Appraisal and Valuation Expert Witnesses: 20

David Ostrove, JD, CPA (Inactive), Mr. Ostrove is a certified specialist in Taxation Law, certified by the California Board of Legal Specialization of the State Bar of California since 1975. He is also a California Certified Public Accountant since 1957 and a California Lawyer since 1960.

Mr. Ostrove is a Professor of Law and Accounting at Southwestern University School of Law in Los Angeles. He is a Past President of the American Association of Attorneys-Certified Public Accountants and a Fellow of the American College of Forensic Examiners.

Mr. Ostrove has authored numerous books on topics within his field of expertise including, "Advanced Corporate Tax Problems"; "Fiduciary Accounting For Estates And Trusts"; "Forensic Accounting" (2 Volumes); "California Community Property - What The CPA must Know"; "Analyzing Financial Statements After Enron - What The Lawyer Must Know"; and "Accounting and Auditing For Trusts & Estates (DVD)." He is a lecturer for the California CPA Foundation, California Continuing Education Of The Bar (CEB), and the Arizona CPA Society.

David Ostrove has been providing litigation support for 35 years. He has testified in numerous cases in both State and Federal Courts. Mr. Ostrove has been employed by lawyers representing defendants and plaintiffs. He offers expert witness testimony in cases involving Legal and Accountant Malpractice, Business Valuations, Tax Accounting Issues, and Economic Damages. He carefully analyzes the facts, law, and accounting principles and presents supportable, timely, clear opinions.

Mr. Ostrove has been given legal authority to act as a Special Master. His services are also available for Mediation and Arbitration.

Areas of Expertise:

View David Ostrove's Consulting Profile.

BTI Appraisal is a broad-based appraisal company which provides a consistently high level of Real Estate Appraisals, Business Valuations, and Machinery and Equipment Appraisals for Business, Professional, Public and Private Sectors. When you choose BTI Appraisal, you benefit from a strong tradition of experience and accuracy.

 A corporate philosophy stressing efficiency and attentive service has made BTI a leader among independent appraisers. They are proud of their reputation for stability, responsiveness, and accomplishment in and out of the courtroom. At BTI, their seasoned staff of success oriented professionals treats each assignment with precise attention to detail, providing needed research and responsive service on a wide range of appraisal needs. 

Litigation Support - BTI’s Founder and Chairman, Ben F. Tunnell III, has headed the firm since 1974. Previously, he spent eight years with First Interstate Bank of California as vice president at their corporate headquarters in Los Angeles. He served on the board of arbitrators for both the American Arbitration Association and the Better Business Bureau. He has also been a Registered Investment Advisor and Broker/Dealer with the Securities and Exchange Commission and a licensed, California Real Estate Broker.

Mr. Tunnell is an ASA, the senior designation of the American Society of Appraisers, and a California Certified General Real Estate Appraiser #AG-6964. He has qualified and testified in Federal and Superior Courts, as well as in arbitration proceedings as an expert witness in Business Valuations, Real Estate, and Machinery and Equipment Appraisals.

View BCI's Consulting Profile.

Bryan L. Parker, CPA/PFS, CFP, CLU, ChFC, CASL, FCPA, is a Certified Forensic Accountant with over 30 years of experience in his field. Background - Prior to founding Bryan L. Parker, CPA, LLC, Mr. Parker held the position of CFO at McPherson Oil Company ($300 million + annual revenues) where he was responsible for advising and negotiating banking relationships, acquisition review, acquisition integration, financial reporting, and interaction with external auditors. His experience also includes serving as VP of Mergers & Acquisitions for Citation Corporation (Public Co.) and CFO of TIC United Corp., Dallas, TX ($300 million + revenues).

Mr. Parker has performed business valuations for more than 100 businesses in a variety of industries including manufacturing, trucking, printing, fuel oil distribution, motor/lubricating oil distribution, professional services, restaurants, fast food franchises, metal foundry, metal forge, machining, and plastic injection molding.

Litigation Support - Mr. Parker provides expert witness services to attorneys representing both plaintiff and defendant. He offers Forensic Accounting services, written reports, deposition, and trial testimony as needed.

Areas of Expertise:

View Bryan Parker's Consulting Profile.

Education:

• Princeton, 1964 (B.A., Economics, with honors)
• NYU Business School, 1966 (MBA, Top of class)

Expertise: Mr. Purcell has over 50 years of experience in every area of investment banking including the following:

• Mergers & Acquisitions
• Leveraged Buyouts and Recapitalizations
• Fairness Opinions and Fairness Issues
• Adequacy Opinions
• Solvency Opinions
• Bankruptcy issues, including fraudulent conveyance
• Valuations
• Advice to Special Committees of Boards
• Due Diligence and Disclosure Issues
• Fiduciary Issues
• Damage issues and analysis
• Lender Liability
• Fee issues
• Document Interpretation and Standards from investment banking point of views
• Criminal cases involving alleged securities violations and insider trading
• Financing of Debt and Equity (both public and private, taxable and tax-exempt, including structured financings)
• Venture Capital
• Leasing and Real Estate Financing

Background: William H. Purcell has been an Investment Banker for over 50 years. He was a Managing Director at Dillon Read for almost 25 years and has been a Senior Advisor to a number of medium-sized investment banks. Mr. Pucell has been a Senior Advisor and Director of Seale & Associates since 2001, an investment bank in the Washington DC area. He also has served as interim CEO of a public company and has served on Boards of Directors. 

Mr. Purcell is currently Senior Director to the Investment Banking Firm of Seale & Associates, Washington, DC. area. Mr. Purcell has been an expert in more than 200 cases with over 180 Law Firms, including cases for the SEC, IRS and the DOJ. Has testified in court trials and arbitration trials over 40 times. He represents both plaintiffs and defendants. Subjects include all areas mentioned above.

 View Consulting Profile.

Joseph Grekoski, CVA, is the founding principal of Acclimation Group. Mr. Grekoski specializes in Economic Damages Calculations for litigation involving defamation, breach of contract, copyright infringement, trademark infringement, and trade dress infringement.

Mr. Grekoski is adept at leveraging advanced social media analytics to quantify lost profits, disgorgement, and reputational harm, with experience calculating reputational harm for high-profile individuals. He is skilled in Name, Image, and Likeness (NIL) valuation and advisory, helping clients navigate the evolving landscape of personal brand monetization.

Mr. Grekoski's experience includes holding the position of Director at an IP valuation firm, working on Bank of America’s #1 ranked equity research team (power and utilities), and advising financially distressed businesses in investment banking.

Mr. Grekoski graduated Magna Cum Laude from Binghamton University, earning a Bachelor of Science degree in Business Administration with a concentration in Finance. He is a Certified Valuation Analyst (CVA), a designation conferred by the National Association of Certified Valuators and Analysts (NACVA). Given his contribution to the field, Mr. Grekoski has been recognized as one of the 2024 30 Under 30 Honorees by NACVA. He also holds the designation of Certified Licensing Professional (CLP), which recognizes individuals who have proven expertise, skill, and knowledge in the licensing and commercialization of intellectual property.