Event planners coordinate complex logistics with multiple vendors, venues, and large crowds. A cancelled event, guest injury, or vendor no-show can lead to lawsuits seeking significant damages. An LLC protects your personal assets and provides the legal structure that venues and corporate clients require before signing contracts. Chicago is home to ~300K businesses and has a population of 2.7M, making it a thriving market for event planners. Forming your LLC in IL provides personal asset protection and positions your event planners business for growth in the Chicago metro area.