Since 1989, Illinois Attorney Jonathan N. Sherwell has practiced exclusively in divorce and all areas of domestic relations and family law, serving Cook, Lake, DuPage, and McHenry counties. For over 30 years, in a highly focused and specialized practice, Mr. Sherwell has acquired extensive experience and knowledge in negotiation, motion practice, trial practice, and all substantive and procedural aspects of divorce and family law.

Mr. Sherwell has previously served as Chairman of the Matrimonial Law Committee of the Northwest Suburban Bar Association and for several years served either in the capacity of Chairman or Vice-Chairman of that committee. He has acted as presenter and moderator at numerous continuing legal education seminars in family law on subjects ranging from divorce, post-divorce modification and enforcement, aspects of property division including valuation of assets and business valuations, injunctions and orders of protection.

In 1998, Mr. Sherwell became a partner of Raymond R. Massucci in the law firm of Massucci, Blomquist, Brown and Sherwell in Arlington Heights, in the same office where Mr. Sherwell practiced as an associate since 1989. Sherwell and Massucci enjoyed a lengthy and productive association in a divorce and family law practice that conformed to the highest standards of domestic relations practitioners in the legal community, at one of the most readily-recognizable and venerable law firms in Arlington Heights and the Northwest suburbs.

On February 1, 2004, Mr. Sherwell established the Law Offices of Jonathan N. Sherwell where he continues to serve the entire Chicago metropolitan area, the North Shore, as well as the north and northwest suburbs in all areas of family law including divorce, post-divorce modification and enforcement, negotiation of property and support settlement agreements including pre and post-nuptial agreements, allocation of parental responsibilities (child custody and visitation), college expenses, parentage (paternity), and orders of protection. Mr. Sherwell’s clients are represented in negotiation and at all stages of litigation.

Mr. Sherwell has been recognized by Thomson Reuters as an Illinois Super Lawyer in Family Law every year since 2015. He is also honored to have been designated as an Illinois Leading Lawyer in Family Law by Law Bulletin Media every year since 2016. These independent ratings services recognize and profile outstanding lawyers from nearly 100 practice areas who have attained a high degree of peer recognition and professional achievement. For both ratings services, only 5% of all attorneys in the state receive the recognition. To look at the selection process and view Mr. Sherwell’s profile, visit and

Mr. Sherwell is a long-time resident of Arlington Heights and is a member of the Arlington Heights Chamber of Commerce. His professional association memberships include the Illinois State Bar Association, and Northwest Suburban Bar Association. Mr. Sherwell became licensed to practice law in Illinois in 1989 after receiving his Juris Doctor from Loyola University of Chicago School of Law. Mr. Sherwell previously received a Bachelor of Arts, Cum Laude, also from Loyola University.