Student Rentals - Get co-signers or have them on a single lease

[Henry P.]

I just recently bought a duplex in London, Ontario, 10 minutes away from school. I am working on the lease agreement now and wondering if it would be more beneficial to have all the students on a single lease agreement, or have separate lease agreements with each student requiring a co-signer.

Is there any way to get best of both worlds? I don't see how a parent would co-sign for the other students in the lease agreement.