His experience encompasses both the architectural and construction management areas of construction. He has played in a key role in the construction of major institutional, commercial, residential and recreational buildings. He has practiced in the USA, Canada, Australia, Papua New Guinea and Germany. He has provided expert witness testimony on numerous cases. He has been involved in the investigation of seismic, product defect, construction defect, construction delay, scaffolding collapse, water intrusion and fire cases. He worked in the both the original construction of the World Trade center and the investigation after 9/11.