Leslie R Casaubon is a practicing lawyer in the state of Texas handle employment matters.

Practices in the areas of civil litigation, business and corporate matters, energy, transportation, insurance, environmental issues, land use, real estate, estate planning, and probate. He was admitted to the Texas State Bar in 1994 after graduating the same year from Texas Wesleyan University School of Law (Now Texas A&M). He is also licensed in the State of North Dakota. He is a member of the Insurance Section of the Texas State Bar, in addition to the Native American Law Section. When William J. Brotherton obtained his law degree in 1994 at the age of 44 after five years of night classes, he was the regional manager for BCM Engineers, Inc., a national environmental engineering firm. Prior to becoming an attorney, William worked at developing complex treatment plans for national Superfund sites and RCRA facilities as an environmental scientist. He received his MS in Environmental Science from the University of Texas at Dallas, and his undergraduate degree from the University of North Dakota. After obtaining his law degree, he then went on to teach environmental law as an adjunct professor for 12 years at Texas Christian University, and lectured in environmental and land-use law at the Center for Environmental Research and Training at the University of Texas at Arlington. He has also lectured at Lamar University, the University of North Texas, and the University of Texas at Dallas. William has served as a court-appointed special commissioner to determine the value of condemned property since 2006. Knowledgeable in that area as a result of his experience serving on the Planning & Zoning Commission for Flower Mound, Texas for over 6 years in addition to his service as a director of the Upper Trinity Regional Water District. Besides being licensed in the States of Texas and North Dakota, William is licensed in the United States District Courts for the Northern District of Texas and the Eastern District of Texas. He is also licensed in the Supreme Court of the United States of America.