The first, the warranty clauses, can be found in the rental agreement (in the same contract). In this case, tenants, landlords and guarantors sign the lease. It is unlikely that a guarantor will be happy to guarantee the rent of tenants he or she does not know (for example.B. in the case of parents who guarantee the rent of a property in which a child lives with other friends). While capping the guaranteed amount is a way to make the guarantor happier, it returns the risk to the owner. The landlord may prefer not to collect the guarantor, but ask for more rent in advance or a larger deposit. If you rent your property to more than one tenant, you will likely use a lease that gives your tenants joint and several liability for paying the rent. .