Environmental Contamination Expert Witnesses

Fort Collins, Colorado

Chemistry & Chemicals, Intellectual Property - Hazardous materials, Environmental contamination, Toxic torts, Hazardous materials storage, Hazardous materials spills, Chemical exposure, Chemical handling, Forensic chemical analysis, Identifying unknown substances, Spectroscopy, Trace-level analysis, Surface/interface analysis, Energy

Dr. Justin B. Sambur is an analytical and materials chemist with extensive experience identifying the composition, structure, and failure mechanisms of materials. He specializes in determining the presence, absence, identity, and quantity of hazardous or regulated materials in complex systems, and he brings a deep, methodical approach to measurement, data integrity, and clear explanation of findings. Dr. Sambur has spent his career studying materials relevant to energy, sustainability, and advanced manufacturing. He is qualified to opine in matters involving battery, solar, and electrolyzer technologies, nanotechnology and nanoparticle synthesis and characterization, and general materials failures or contamination events. Dr. Sambur earned his Ph.D. in Chemistry from Colorado State University in 2011 and was awarded a prestigious National Science Foundation Postdoctoral Fellowship to conduct research at Cornell University. Since joining the Colorado State faculty, his expertise ...

Atlanta, Georgia

Real Estate, Real Estate Appraiser - Involved in estate portfolios, stigma, defaults, damages, environmental contamination, foreclosure, bankruptcy, USPAP issues, leasing, eminent domain, Yellow Book, easements, receiverships, special servicer, CMBS, real estate diminution, ground leases, leaseholds, subleases - ALL types of CRE

* over 33 years specializing in commercial real estate appraising and consulting * Earned MAI designation 26 years ago (1998); Earned AI-GRS 9 year ago (2015) * Testified on value over 40 times for court litigation matters Publications/Seminars Developer of 4 Hour Seminar “Regional & Local Verification Requirements for Yellow Book, USPAP, State Regulations & Various Clients” Author of Appraisal Institute Article, “USPAP 2024: The 1st Update with No End Date”, 1st Qtr. 2024 Newsletter Coauthor of Appraisal Buzz Article, “Drones Take Flight for Appraisals,” Sept. 10, 2019, website Author of Appraisal Institute Article, “USPAP 2018-2019 Provides Clarity and Balance”, 4th Qtr. 2017 Newsletter Author of Appraisal Institute’s “Analyzing Credit Tenant Risk and Commercial Lease Analysis”, 7 Hour Seminar released in 2010 Contributing writer to Appraisal Institute’s “Analyzing Distressed Real Estate” 7 Hour Seminar released in 2009 Teaching AQB Certified USPAP Instructor -The Apprai...