I am married to Maragrita Marchan-Mankus who is a member of the lawfirm. She is licensed to practice in Illinois and Puerto Rico. Her areas of specialty are Social Security Disability and Real Estate.

We have four daughters: Clarissa, who works for a TV station in Milwaukee and is studying for her MBA; Camille, who is a graphic designer and works in Chicago; Margarita, who is a medical student in the Ponce School of Medicine in Puerto Rico; and Ariana, who is a cadet at the US Military Academy at West Point and a varsity volleyball player.

I play tennis regularly and enjoy writing. I belong to several writing groups in the western suburbs of Chicago. I have been active with our chruch, St. Margaret Mary in Naperville. I am also fluent in Spanish and Lithuanian.