I have 40 years of experience and specialize in the field of construction with specific knowledge in the areas of construction and real estate development practices, cost estimating, and construction claims and defects. I have published on such topics as cost estimating and bidding, construction contracts, claims and changes, and construction field and project management. I have testified 30 times on topics such as construction cost estimating and real estate development issues, construction field and management procedures, and construction quality, safety, claims and defects.