Cannot consider felonies with dates of sentencing older than 7 years cannot consider convictions for certain felonies with dates of sentencing older than 10 years, including: first-degree murder, second-degree murder, third-degree murder, first-degree manslaughter, kidnapping, first-degree criminal sexual conduct, first degree assault, first degree arson and first degree aggravated robbery.

You get a complete credit file, criminal and financial background and sexual harrasment as well has eviction and bankrupsy check.There are many payment options.

and you are leasing it without Agent Assistance, you can discriminate (Check Validity in your state)  - but commonsense says stay away from questions about sensitive subjects (Religion, Sexual Orientation, Ethnicity, etc). 

Haha....ok I'm joking, kind of...All those things are important, but first is credit score(700 or better preferred, can go lower if other conditions are optimal) and no previous evictions, no felony convictions(especially violent or sexual).

The Cook County Human Rights Ordinance: This ordinance prohibits people in Cook County (including employers, landlords, property managers, real estate agents, store and restaurant owners, bankers, lenders and Cook County government officials and employees) from unlawfully discriminating against or harassing other people on the basis of that person's race, color, sex, age, religion, disability, national origin, ancestry, sexual orientation, marital status, parental status, military discharge status, source of income (including use of a housing choice voucher), housing status, or gender identity.

Also, there is a tenant in another unit who is a sexual offender of small children.

I approached her and she evicted me. unfortunately I was stuck with nowhere else so I lived with it until her son sexually assaulted me.

There's a controlled, pre-existing relationship (likely of a sexual character - but I don't know you and I'm not assuming) between the agent selling the property and the inspector who assesses its quality. 

The reason for the background check is I would like to know who I have living on my property, sexual predators, past criminals, I want to know.They are actually considerably below market rents for their unit and the area, I mean like $500 dollars a month below average.  

There is a park in my area that will not rent to sexual offenders.