Buddy Started Dating A Girl With A Private Detective Ex Husband

Seeking advice for Chicago, Illinois. So a buddy of mine started dating a woman with a physco jealous ex husband who's a privet investigator, who seems to be well versed in the law.

They've been dating long distance for a year now my buddy finally went out to visit her in Chicago, and hes caught up in a world wind romance with her,

Apparently she lives in the home she got from the divorce, but the ex husband name is still on the deed. I guess he found out that my friend was visiting and doing activities with the women and his kids, so he flipped an posted this on the women door with his exact name. I'll edit identifying names and address

"NOTICE OF

CRIMINAL TRESPASS and HARASSMENT WARNING

Issued upon the below via Process Server:

(Buddie's name)

Women's home adress

PLEASE BE ADVISED THAT PURSUANT TO 720 ILCS 5/21-3 (CRIMINAL TRESPASS TO REAL PROPERTY) YOU ARE HERBY NOTIFIED THAT YOU ARE FORBIDDEN TO ENTER OR REMAIN ON THE PREMISES LOCATED AT her address, CHICAGO, her address, INCLUDING BUT NOT LIMITED TO NON-PUBLIC SPACES, PARKING LOTS, AND NON-PUBLIC SIDEWALKS.

FURTHERMORE, PLEASE BE ADVISED THAT PURSUANT TO 720 ILCS 5/21-2 (CRIMINAL TRESPASS TO VEHICLES) YOU ARE HERBY NOTIFIED THAT YOU ARE FORBIDDEN TO ENTER OR REMAIN IN, INCLUDING BUT NOT LIMITED TO OPERATING, THE FOLLOWING. (her car) BEARING ILLINOIS VEHICLE REGISTRATION: her license plates.

This notice will remain in effect for 2 years from the date of service. A copy of this notice and the affidavit of service will be lodged with the Illinois State Police, Chicago Police Department, and Hillside Police Department after service is effectuated.

Issued by:

Physo Ex

(Tenant and Owner of the above listed property)"

Does this hold any water? Does this apply in this situation. Any advice would be greatly appreciated.