[Your Name] [Your Address] [City, State, ZIP Code] [Email Address] [Phone Number] [Date] [Illinois Secretary of State] [Department of Business Services] [Address] [City, State, ZIP Code] RE: Certificate of Transaction of Business under Fictitious Name — By Partnership Dear [Illinois Secretary of State], I am writing to request a Certificate of Transaction of Business under Fictitious Name for my partnership operating in Chicago, Illinois. We are seeking to conduct business under a fictitious name, as outlined in the Illinois Assumed Business Name Act (805 ILLS 405/1-10). Partnership Name: [Enter Partnership Name] Principal Place of Business: [Enter Address of Principal Place of Business] The following information pertains to the partners of our business: Partner 1: Full Legal Name: [Partner 1's Full Legal Name] Residential Address: [Partner 1's Residential Address] Partner 2: Full Legal Name: [Partner 2's Full Legal Name] Residential Address: [Partner 2's Residential Address] Partner 3: Full Legal Name: [Partner 3's Full Legal Name] Residential Address: [Partner 3's Residential Address] Partner 4: Full Legal Name: [Partner 4's Full Legal Name] Residential Address: [Partner 4's Residential Address] Our partnership intends to engage in lawful business activities in Chicago, Illinois under the aforementioned fictitious name. We understand that by submitting this letter, we acknowledge our responsibility to notify the Illinois Secretary of State within 30 days if any changes occur in the information provided. Enclosed with this letter, please find the appropriate filing fee [if applicable], made payable to the Illinois Secretary of State, along with a completed "Application for Certificate of Transaction of Business under Fictitious Name — By Partnership" form. We kindly request that upon processing this application, the Certificate of Transaction of Business under Fictitious Name be mailed to our business address provided above. Should you require any additional information or have any questions regarding our application, please do not hesitate to contact me at [Phone Number] or [Email Address] during regular business hours. Thank you for your attention to this matter. Sincerely, [Your Name] [Partner Title]