Landlord's 30 Day Notice- Filling out, Norarizing

[Mike Nelson]

Here in Chicago, Illinois I need to serve my tenant a 30-day notice.  It is important that it be completed correctly, otherwise its validity could be questioned by an attorney or judge. I plan on delivering the notice to the tenant in person.   At the bottom  of the form there is an "Affidavit of Service"where I swear that I have served the ____tenant on ____ date.   This Affidavit is notarized by a Notary Public.  Does this portion get signed and notarized before or after I serve the tenant?

Are there any other tips for correctly completing this form.