JOSEPH K. KLEIN graduated from the University of Illinois, Urbana in 1979. He earned a Master's degree in Administration, Higher, and Continuing Education from the University of Illinois in 1983. He earned his Juris Doctor degree from The Chicago-Kent College of Law in 1983.
In 1985, Mr. Klein founded the firm practicing in the areas of family and matrimonial law, school law and real estate. Currently, Mr. Klein is the managing partner of the family and matrimonial law department. He has held many civic positions in the Arlington Heights community. He is a member of the Board of Advisors for Illinois High School District 214 Community Education Foundation and Roosevelt University.