William Scanlan, Jr. served as a Captain in the U.S. Army from 1966 to 1970 with one year of service in Vietnam. His decorations include the Army Commendation Medal and the Bronze Star. He was an adjunct professor of estate and gift taxation at St. Mary's University School of Law for over twenty years, and is the author of numerous articles and a frequent lecturer on taxation, estate planning and trust and estate administration issues at programs such as the Wills & Probate Institute at the Center for American and International Law, the Annual American Institute on Federal Taxation, the University of Texas Annual Taxation Conference, the San Antonio Young Lawyer's Docket Call in Probate Court, and State Bar of Texas seminars.
He served for five years as the Taxation Editor and for three years as the General Editor of the Real Estate, Trust and Probate Newsletter published by the State Bar of Texas. He is also a Fellow and Former Regent of the American College of Trust and Estate Counsel and Editor of ACTEC Notes. He is admitted to the practice of law in Texas and before the U.S. Tax Court. William Scanlan, Jr.'s civic activities include service as Trustee of the following: College of Arts & Sciences of the University of Virginia; Oldfields School (Glencoe, Maryland); San Antonio Museum of Art; St. Luke's Episcopal School; City Centre (San Fernando Cathedral) Foundation; Santa Rosa Children’s Hospital Foundation; St. Andrews-Sewanee School (Sewanee, Tennessee); and Main Plaza Conservancy. He is A-V rated by Martindale Hubbell and is fluent in Spanish.