She is licensed to practice in Illinois and is based out of the firm's Belleville office in St. Clair County. She represents clients in a wide variety of family law matters, including, divorce, child custody, child support, paternity and other domestic relation matters. Note: The choice of a lawyer is an important decision and should not be based solely upon advertisements. Kristin Olson is responsible for the content. Principal place of business 120 South Central Ave, Suite 450, St. Louis (Clayton), MO 63105.