Four Applicants, Two Credit Worthy

[David Moore]

Four young people applied to rent one of my houses.  One has a great credit score, one has a rich father (Doctor) who pays his rent no matter what, and two have zero credit history, and both have erratic or very recent job hires.

I've already rejected one of the four due to no credit history and too short of job history, and the fact that the guy doesn't respond when I asked for follow up info.  The other non credit worthy applicant is the girlfriend of the guy with the rich father.  

Now, the rich farther and the guy with the great credit score have said they will help pay for the girlfriend of the rich guy.  She has zero credit, erratic work history, and also has not responded to multliple inquiries.

My solution is to offer to rent to the two who can pay, and reject the other two.  However, the two will cover for the girlfriend.  Sign up the  three in this case, and reject the one? Your thoughts?