Contact Contact the firm to receive a free phone consultation regarding your potential case. (312) 945-6065 (312) 757-6316 Fax info@marquardtlawoffice.com Main Office:4256 N Ravenswood Avenue, Suite 202 Chicago, IL 60613 Mailing Address:4255 N Honore Street, Suite 202 Chicago, IL 60613-4572 Name Email Phone Message Send You have rights. Marquardt Law Office LLC represents investors nationwide. Call or email the firm to speak to an attorney for a free consultation. Don't let the time to file your claim run out. Contact Marquardt Law Office LLC today.