Question: how to change your last name in illinois after divorce?
Answer: Prepare the Forms Required. There are two forms required to change your name: a petition and a Notice of Filing for Change of Name. ... 
File the Petition. ... 
Publish the Public Notice of Name Change. ... 
File the Certificate of Publication. ... 
Attend the Hearing. ... 
Notify the Secretary of State. ... 
Change Your Name on Official Documents.