John B. Stahl, PLS, CFedS, is a registered professional land surveyor in the states of Utah and Montana, currently owning and operating Cornerstone Professional Land Surveys, Inc., and Cornerstone Land Consulting, Inc., in Salt Lake City.  Mr. Stahl specializes in surveying land boundaries, resolving boundary conflicts, performing title and historical research, land boundary consultation services, mediation and dispute resolution.  He has been qualified as an expert witness in numerous boundary, access, and negligence cases and has actively participated in the preparation of amicus curiae briefs to the Utah Supreme Court.  He has furthered his mediation education by participating in a state-qualified 40-hour training program.  He has also completed a 200-hour training and examination program to earn the recognition as a Certified Federal Surveyor.
 
Mr. Stahl has served his profession as state chairman of the Utah Council of Land Surveyors and a Utah delegate to the Western Federation of Professional Surveyors.  He is an adjunct instructor for the Salt Lake Community College, where he has taught mathematics, ethics and liability courses for land surveying students. He continues to teach an extensive course in land boundary law comprising 54 hours of lecture per year since 1991.  He also holds a position as adjunct instructor for the Utah Valley University, Geomatics degree program, where he teaches an advanced level Surveying Legal Principles class.  Mr. Stahl received his A.A.S. degree in land surveying from Flathead Valley Community College in Kalispell, Montana and has authored numerous articles and publications covering topics on boundary laws, research, and resolving conflicts of evidence.