Under Illinois law, family or household members are defined as:
- family members related by blood;
- people who are married or used to be married;
- people who share or used to share a home, apartment, or other common dwelling;
- people who have or allegedly have a child in common or a blood relationship through a child in common;
- people who are dating or engaged or used to date, including same sex couples; and
- people with disabilities and their personal assistants.