Andrew J. Mertzenich is a prominent attorney based in Rockford, Illinois. He is the founder and managing attorney of The Law Office of Andrew J. Mertzenich, which focuses on various legal areas, including estate planning, bankruptcy, appellate litigation, and real estate transactions. The firm prides itself on being owned and operated by members and allies of the LGBTQ+ community, and it strives to provide a safe and inclusive environment for all clients. His commitment to the LGBTQ+ community is reflected in his work both professionally and personally. He serves as Chair of the Rockford Area Pride Committee, which just pulled off to great fanfare the first official Rockford Area Pride Parade in 2024.

In addition to his legal and civic activities, Andrew is also a passionate musician, serving as Director of Traditional Music at Westminster Presbyterian Church and Organist at Court Street United Methodist Church in Rockford. His teachers include Steven Wente, Dmus and Gregory Gyllsdorff MFA. He gives regular recitals, and has been a featured guest artist of the Rockford Symphony Orchestra. He is actively involved in the local music scene and volunteers with the Land of Lincoln Theatre Organ Society where he is featured regularly on the Grande Barton Theatre Organ in the Coronado Performing Arts Center. Finally, Andrew is a self-taught music conductor, having conducted the Christmas Eve service at Westminster Presbyterian Church (featuring over 30 local musicians) and serving as interim artistic director of the Ecumenical Community Handbell Organization (ECHO) which features the most advanced handbell ringers in the Rockford area. 

He lives in Belvidere with his husband, Cody, and their cat, Jeffrey.