Fill out the contact form or call us at (312) 269-0200 or (402) 951-9330 to schedule your consultation. ERISA is a federal law that implements standards for certain employer-sponsored retirement and health plans.State law now requires every Illinois employer with five or more employees to offer their own retirement program or facilitate Secure Choice. Learn about the 401k and benefit plan audit services offered to organizations in Chicago and Illinois including ERISA compliance - Chicago (IL). • Individual participating or eligible to participate in The University of Chicago Contributory. Retirement Plan (CRP). Learn about the Employee Benefit Plan Audit services offered to companies in Illinois including 401k, 403b and other retirement plan audits. Retirement Plan, or.