One tenant is good and one is not so good

[Jane A.]

I am a little bit puzzled. I have an application from unmarried couple. Girl's credit check returned good, but guy's is not and he works as an independent contractor. My intention is just to have only girl in the lease and do not have her partner. Would it be better for me ? Or just reject their application. I run an application through BP resource and it approved both but after careful reading I would not approve a guy (very low scores and does not pay child support and messed with his SSN)