Simborg ? Killingsworth is one of the preeminent family law firms in the San Francisco Bay Area offering representation in litigation and mediation as well as private judging services. The partners of the firm-Madeleine Simborg, Sarah Killingsworth, Erin Dominguez and Catherine Kendrick-have 65 years of combined family law experience. Sarah and Madeleine have been partners since 2004. Erin joined the partnership in 2015 and Catherine joined the partnership in 2019.