College and new grad roommates with cosigners

[Suduk N.]

I have 4 guys who are friends and recently graduated or still going to college applied for my apartment. 2 brothers and another person had cosigners but the 4th person. 1 of the cosigner has very high income, the other is decent enough to cover the 2 guys. The last person is unemployed and has no co signer.

Would you consider this application? Should I ask for the 4th person to have a cosigner too? Their incomes are barely nothing so the rent has to come from the 2 cosigners. My concern is if one of them decides to leave even though they are all jointly liable for the lease, things would get difficult.