I was told I needed to fill out a rental application (where ssn is required) before viewing it because he gets several requests a day. For applicants without a social security number, proof of a permitted stay in the US with a visa is required as well as the last 3 months rent paid in advance.Doing a background check without a Social Security number from a rental can often be done. Generally one must apply with the landlord or property manager. A SS number is required for a credit check which will most likely be done. Good morning Jamie, The SSAN is the ONLY way they can run a credit check on you. Most landlords these days won't rent to you without one. Since the SSN is a required field, have them temporarily enter any 9-digit number so they can continue filling out their rental application and complete it. Guarantors must possess a social security number in order to be considered for qualification. Transunion includes a single address check, but no verification of employment or rental history.