Things To Know About Illinois Divorce Law Here are 40 things we think everyone should know about divorce. 1. You can’t use the same lawyer as your spouse. 2. Annulments are rare and typically a religious term. 3. File for divorce locally in the county you or your spouse lives in. 4. You have to live in Illinois for at least 90 days to file here. 5. The case will last as long as it takes you to agree on all issues. 6. It is possible to ask your spouse to be responsible to pay your attorney’s fees if there is a disparity in income. 7. While you can dispute the contents or grounds of a divorce and delay it., typically you cannot stop a divorce from happening. 8. For the most part, it doesn’t matter who did what to cause the divorce. 9. Children don’t get a say in custody, but as they get older they have more influence. 10. Most cases settle and don’t go to trial. 11. There is a difference between legal separation and divorce. 12. If you change y...