Peyman Tabatabaei

M. Eng., P.Eng., PE

Credentials & Certifications

Academic Degrees

M.Eng. in Geotechnical Engineering
B.Sc. in Civil Engineering

Professional Licenses

Licensed Professional Engineer, PE, (California, Iowa, North Carolina, USA)
P.Eng., (Alberta, British Columbia, Canada)

Jurisdictions

Qualified for Expert Testimony across USA and Canada

Forensic Expertise

Peyman Tabatabaei provides forensic geotechnical engineering services focused on the evaluation of subsurface conditions, construction practices, and their role in project performance and failure. He supports attorneys, insurers, and property owners in complex construction disputes by delivering clear, defensible opinions grounded in engineering analysis and field evidence.

His work focuses on causation analysis, standard-of-care evaluation, and the technical assessment of construction activities including grading, excavation, earthwork, and site development. Peyman is experienced in identifying the root causes of geotechnical failures and distinguishing between natural site conditions and construction-related impacts.

His areas of expertise include:

Foundation settlement, heave, and ground movement
Retaining wall, shoring, and earth retention performance
Landslides, slope instability, and soil failure mechanisms
Surface water, drainage, and erosion-related ground impacts
Subsurface conditions and soil–structure interaction
Construction defects and site preparation issues

Litigation support &
Testimony

Peyman has a proven track record supporting legal counsel through all phases of dispute resolution, including case evaluation, site investigation, expert reporting, and testimony. He is recognized for his ability to communicate complex geotechnical issues in a clear, concise, and defensible manner for legal teams and non-technical stakeholders. His opinions are developed to withstand technical scrutiny and cross-examination.

His litigation support experience includes:

Construction defect and geotechnical failure disputes
Insurance claims involving earth movement and water-related damage
Differing Site Condition (DSC) claims
Mediation, arbitration, and deposition testimony