Since settling in the Rochelle area in the 1860s, the Guest family has had a long history associated with the Rochelle community.
David K. Guest, the founding member of the law firm, is a graduate of Rochelle Township High School (1946), of Beloit College (Cum Laude in 1950), and of Northwestern University of Law (1953). After working at the Continental Bank in Chicago after law school, David moved back to Rochelle in 1955 to start a family and to establish his own law firm. From 1959 to 1975, David was the Rochelle City Attorney and from 2001 to 2005, the attorney for Flagg Township. He has been a long time member of the Flagg Township Historical Society and Rochelle Kiwanis Club.
David has served on the board of directors of the Rochelle Community Hospital and the Rochelle Community Hospital Foundation.
He and his wife, Barbara, live in Rochelle and have two children and six grandchildren.