If I will have to reject her.

Also, legally my reason for rejecting applicant 2 would be % of salary. 

Not worth the risk, reject and move on to the next applicant.Being able to pay rent is only one requirement of screening.

The landlord set the pace not the applicant and if they can not comply you reject their application.

Also, you should mark down the reason for your rejection in case an applicant files a complaint against you.

After I review the entire report I may still reject a applicant with a higher score if they have maxed out their credit limit.

Those are the same regulations we are forced to work with in our jurisdiction and I choose to ignore them to protect my business and my tenants.You will learn from experience that :  enforcement of the regulations will be rare if not non existent, reports by applicants few and far between, proving their case nearly impossible and landlords will quickly learn to operate their business as they always have.Stupid landlords will tell their applicants why they were rejected and suffer the consequences while the smart one will operate with impunity by simply not being so stupid as to tell them they have discriminated.Ignoring the regulations is necessary to protect your business and your other quality tenants.

They can push back and your only recourse is to take them to court where a judge is likely to reject your claim that the tenant is responsible.

Then rejecting prospects without issue is no big deal.  

Technically, this new law didn't make it "illegal to reject Section 8".