Expert Testimony & Litigation Support

Experienced Legal Support

Advanced Securities Consulting’s professionals have the technical expertise and extensive litigation support experience to assist parties involved in complex commercial litigation. Disputes involving extended and complicated transaction chains, securities lending, and repo are becoming more common.  Litigants need experts like ASC who can make often esoteric financial concepts clear and understandable to laypersons, particularly jurors, judges, and boards of directors.   

ASC also assists regulators in investigations, enforcement actions, and enforcement litigation.


Advanced Securities Consulting has provided expert witness testimony, analysis, and opinions in complex financial cases before courts and tribunals throughout the US. 



  • 2020 - U.S. District Court, Southern District of NY
  • 2015 - US District Court for the Northern District of Illinois
  • 2014 - Consultation for the Enforcement Division of the U.S. Department of Labor
  • 2014 - U.S. District Court, District of Minnesota
  • 2013 - Circuit Court of Cole County Missouri
  • 2012 - US District Court for the Northern District of Illinois
  • 2012 - Twelfth Judicial Circuit for Sarasota County, Florida
  • 2012 - U.S. Bankruptcy Court, Southern District of NY
  • 2012 - US District Court for the District of Massachusetts
  • 2012 - US District Court for the District of Nebraska
  • 2012 - US District Court for the Middle District of Florida
  • 2011 - US District Court for the Central District of California, Southern Division
  • 2011 - US District Court for the Southern District of New York
  • 2010 - American Arbitration Association



Class Action Litigation Support

Class action litigation affecting financial firms often involves complex data, requiring the reconstruction of cash flows, billings, transactions, or lengthy and complex transaction chains. ASC provides the expertise necessary to piece together and reconstruct financial histories in a comprehensive, coherent format.  ASC's extensive data, research, and statistical expertise are also instrumental in assisting litigants to place values on hard-to-mark trades and businesses.  

Often, our analyses are integral to assisting lawyers to map out sound defense strategies, and the application of techniques used by ASC can be effective in ending class action suits in the summary judgment phase, well before the costs of protracted litigation are incurred.


Testifying and Consulting Experts

ASC's principals have been testifying experts in numerous securities finance litigation matters, educating judges and juries on complex financial concepts, business practices and operations, and standards of care. Our experts have been retained as consulting esperts to assist in developing legal and discovery strategies, challenge opposing experts, reinforce the and coach testifying experts, and help advocates to determine how to best represent the facts of the case at trial. The opinions and analysis of our experts have been integral to the successful trial or favorable settlements for our clients. We are pleased to provide references upon request. 



Litigation Services Handbook   ASC's work in securities finance litigation is well known and recognized beyond our clients and even opposing counsel. Our founder, securities finance expert, Edmon W. Blount, co-authored the chapter, "Securities Finance Disputes (30.1)" in the definitive guide for financial experts engaged in litigation services.   Weil, Roman L., et al. Litigation Services Handbook: The Role of the Financial Expert. VI ed., John Wiley & Sons, Inc., 2017.