Using student loans to qualify

[Amy A.]

I've recently had some students interested in renting from me.  They will use student loans to pay rent.  My screening criteria requires income of at least 3 times the rent.  How do I qualify these students when they are living off student loans?  Are they guaranteed to receive the loans all year long?  I don't know much about student loans, as I never had any.  They seem like good applicants otherwise.