In most cases, guarantors will fill out the same application as a full lessee. The difference being that some landlords require only a credit screening.In joint leases, all roommates and guarantor(s) will be responsible for the entire price of the entire apartment. My DD just graduated and is going to rent an apartment in NYC with 2 other roommates. The lease starts after she will have only one pay cycle at her job. Your guarantor will fill out an application and provide similar documents to a landlord as you, including photo ID and recent bank statements. International students renting in NYC need to provide their passports to their landlord or property manager for verification. Insurent's lease guarantor service makes it easy to get approved, even if you don't meet strict financial requirements. Accepted in NYC, NJ, DC, and more. Started in NYC, serves USA.