Guarantors help tenants qualify for an apartment. They promise to cover rent and other expenses if the tenant fails to do so.Typically guarantors will need to produce the same documents as tenants, as well as fill out an application and have their credit run. Bank statements, tax returns, etc.). After all tenants, occupants, and guarantors (when applicable) complete their online application, your lease application will be reviewed. Any guarantor would only need to fill out an application, provide the necessary paperwork, and sign the lease. A guarantor needs to make 80x the rent to have a credit score of around 800. Ideally, they should be US residents from the tri-state area. A guarantor must provide the same documentation as tenants even when applying as guarantor. Landlords usually only accept guarantors that live in the city or the surrounding Tri-state area so they can sign an original copy of the lease.