Massachusetts landlords, if you are signing a lease with a tenant who is a minor (such as a student), make sure a parent or guardian of the tenant executes this 
Lease Co-Signer Agreement.
The co-signer agrees to:
-  have the landlord check his ⁄ her credit,
-  guarantee that the tenant complies with the rental agreement,
-  guarantee the payment of rent. 
This 
Massachusetts Lease Co-Signer Agreement is provided in MS Word format. It should be attached as a schedule to the lease or rental agreement.