Tenant screening with child support

[Raghavendra Jakkani]

For my very first rental property the very first application I got had income which is 4.7 times rent. rent is $2550 and income $12k out of which $3kis child support.  Credit history is excellent. No criminal or eviction record. Even if I go by 3X applicant meets the rental criteria. 

1. I am here for experts opinion to find out what you guys think? Is there anything that I need to consider given this information?

2. Do I need to ask for screening of every one living or only persons signing the lease? The number of occupants listed in application is 3

Rental screening is through Zillow Rental Manager. 

[Nathan Gesner]

Quote from @Raghavendra Jakkani:

Yes, you should screen and approve every adult living in the home, whether they contribute to paying rent or not. It's not unusual for one good person to apply, and they move in their half brother that just got out of prison or something.

There's a lot more to look at than just income. Here's a detailed guide on how to screen applicants: Application Screening Guide