D. Neil Sinclair


Expert Highlights

  • Expert witness advice for construction claims and disputes including delays, time extensions, quantum, productivity and acceleration. Over 40 years experience.
  • Provided expert testimony on numerous disputes in US Federal and State courts, Arbitration hearings and dispute review boards.
  • Experienced in preparing expert reports for litigation and arbitration or mediation.
  • Has provided oral testimony and has been cross-examined on multiple occasions.
  • Creation or analysis of claims and advice for arbitrations, mediation and settlement negotiations. Experienced in providing detailed rebuttal analysis and testimony.
  • Participated in multiple deposition hearings including when multi parties are legally represented.
  • Investigation and determination of nature and extent of damages.
  • Expert determination of cost to complete and cost of repairs including fully detailed construction cost estimates based on labor, material and equipment analysis.
  • Expert peer review of third-party documentation and analysis.
  • Fellow of the Chartered Institute of Arbitrators and a practicing arbitrator. An industry neutral panel member of the American Arbitration Association.
  • Qualified as a Chartered Quantity Surveyor in 1987
  • Experience of the procurement and commercial management of building, civil engineering and process / MEP services projects on the basis of drawings and specifications, schedules of work, bills of quantities or approximate quantities, schedules of rates, daywork rates or on a reimbursable basis. Lump sum or GMP forms of procurement.
  • Experienced with Govt. Contracting including GSA and Military Contracts as well as multiple US State or County contracting forms.
  • Experience of industry standard or bespoke contracts and collateral documents across AIA, Consensus Docs, AGC, JCT, FIDIC, NEC and variants including traditional, design and build, GMP, EPC, and framework models.

Neil has worked in and had project experience in many countries in Europe, Middle East, South East Asia and the Americas. He has lived and worked in the US since 1985.


Msc. Construction Management (with distinction)
Bsc. Quantity Surveying and Building Economics (first class honors)
L.L.M Construction Law and International Arbitration (in progress complete 2022)

Professional Memberships

Fellow of the Chartered Institute of Arbitrators
Member of the North American Society of Construction Law
Member of the American Association of Cost Engineers