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Expert Witness Blog

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Investment Banking Expert Witness Testimony Scrutinized in Landmark Securities Litigation

In the sprawling multidistrict litigation of In Re Initial Public Offering Securities Litigation, S.D.N.Y. 2001, the role and admissibility of expert testimony—particularly that of an Investment Banking Expert Witness—became a focal point as federal courts grappled with complex allegations of securities fraud and market manipulation by leading investment banks. Background…

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Judicial Scrutiny of Appraisal & Valuation Expert Witness Testimony in Property Disputes: Lessons from In re Marriage of Lietz

In the recent California Court of Appeal decision, In re Marriage of Lietz, 2024, the court addressed the pivotal role of the Appraisal & Valuation Expert Witness in the division of marital property, specifically the valuation of the family home during dissolution proceedings. Background and Parties Diana and Andreas Lietz…

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Utilities Appraisal Expert Witness Testimony Shapes Eminent Domain Valuation in Landmark Nebraska Case

In the eminent domain dispute of Iske v. Metropolitan Utilities District of Omaha, 183 Neb. 34 (1968), the Nebraska Supreme Court addressed the admissibility and reliability of testimony from a Utilities Appraisal Expert Witness in determining the fair market value of land condemned for public utility use. This case remains…

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Tax Expert Witness Testimony Under Scrutiny: Oklahoma Supreme Court Clarifies Discovery Limits for Expert Witness Financial Records

In the recent decision of JOLLEY v. McCLAIN, Oklahoma Supreme Court 2025, the Oklahoma Supreme Court addressed the scope of permissible discovery into the financial records of a Tax Expert Witness in condemnation proceedings. The case provides critical guidance on the intersection of expert witness bias, discovery rights, and the…

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Art Recovery Investigation Validates Family’s Ownership Claims: Antiques, Art, & Collectibles Appraisal Expert Witness Testimony Proves Decisive in Christie’s Auction House Dispute

The complex world of art authentication and ownership disputes came into sharp focus in Kozar v. Christie’s, Inc., New York Other Courts 2011, where an Antiques, Art, & Collectibles Appraisal Expert Witness played a crucial role in establishing the rightful ownership of a valuable painting that had been consigned to…

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