William Marsh Robertson was born in 1963 in Greer, South Carolina and grew up in Greenville. After graduating from Greenville High School in 1981, Robertson attended Washington & Lee University in Lexington, Virginia, where in 1985 he graduated cum laude. He earned his juris doctorate degree from the University of the South Carolina School of Law in the spring of 1988.

Following law school, Robertson worked for two years as an associate with the Columbia, South Carolina law firm of Lewis, Lide, Bruce and Potts, PA. In 1990, he relocated to Greenville, where he joined his father in forming Robertson & Robertson, PA, a law firm dedicated to the practice of matrimonial and family law. For the next 20 years, Robertson practiced exclusively in the area of family law, most recently with Robertson & Hodges, LLC. On February 3, 2010, he was elected by the South Carolina Legislature to Seat 2, Family Court, 13th Judicial Circuit.

Robertson has been a member of the South Carolina Bar since 1988. He served on the Family Law Council from 1998 to 2001, and was a Fellow in the American Academy of Matrimonial Lawyers from 1999 to 2010. Robertson also served as an editorial board member for Stuckey, Marital Litigation in South Carolina: Substantive Law, 3rd Edition, 2000, and Stuckey, Marriage and Divorce in South Carolina: A Layperson’s Guide, 2001. In private practice, Robertson was rated “AV” by the Martindale-Hubbell Law Directory, and was selected for inclusion in the 2008, 2009, and 2010 editions of South Carolina Super Lawyers. Robertson has presented at multiple Continuing Legal Education seminars, both as a lawyer and as a judge.  He has served as an officer of the South Carolina Conference of Family Court Judges, a member of the Family Court Judge’s Advisory Committee, and an instructor at Orientation School for Newly Elected Family Court Judges.

Robertson is married and has three adult children and two adult stepchildren.  He is an enthusiast of music and sports, and enjoys playing golf and spending time with family.