News | May 8, 2026
A recent study by Tatyana Avilova, Economist at Secretariat has been selected by the Editor of JAMA Health Forum as an Editor’s Choice: Clinical Trial of 2025.
Mr. Diffendall provides expert testimony on delay and quantum. His work includes advisory services, project controls, and schedule development. Mr. Diffendall’s industry experience includes oil & gas, infrastructure, energy, heavy industrial, aerospace, commercial & residential construction, and government contracts.
Washington, DC
Tim Diffendall has more than 20 years of experience providing project claims and dispute resolution, project advisory, scheduling services on government and private contracts for both owners and contractors. He has worked on “mega” and other large complex projects worldwide, including the United States, Canada, Mexico, Central and South America, the Middle East, Central Asia, and Africa.
His experience spans various industries, including mining, oil & gas, infrastructure, energy, heavy industrial, aerospace, commercial construction, and general residential. Mr. Diffendall has consulted on project management issues throughout the life of a project, from the proposal phase to advising clients during construction on cost control and schedule matters, to performing analyses from a forensic perspective. His forensic capabilities have focused on development, analysis, and resolution of schedule delay and cost overrun claims, with the results of his findings presented in mediation, arbitration (including international arbitration), and various other alternative dispute resolution forums.
Mr. Diffendall is certified as a Planning and Scheduling Professional and a Certified Cost Professional and is an expert in performing delay and cost overrun analyses on complex construction matters.
A recent study by Tatyana Avilova, Economist at Secretariat has been selected by the Editor of JAMA Health Forum as an Editor’s Choice: Clinical Trial of 2025.
Secretariat Experts Recognized in Lexology’s 2026 Investigations Report
Ten of Secretariat experts have been recognized in the Lexology Index 2026 Investigations report, produced in partnership with Global Investigations Review. The guide highlights leading investigations lawyers, digital forensic specialists, and forensic accountants who are trusted to support the most demanding matters worldwide.
AI is rapidly reshaping how financial institutions in Latin America approach compliance, shifting from reactive monitoring to proactive financial crime detection. Advanced AI platforms specialized in crime detection enable banks to process vast datasets, identify anomalous behaviors, and map hidden relationships across accounts and jurisdictions. This is particularly relevant in a region characterized by complex cross-border flows, uneven regulatory enforcement, and significant exposure to illicit economies.