It looks like they either need to establish sufficient credit or document the source of the rent income.
This bill would additionally prohibit the use of a person’s credit history as part of the application process for a rental housing accommodation without offering the applicant the option of providing lawful, verifiable alternative evidence of the applicant’s reasonable ability to pay the portion of the rent to be paid by the tenant, including, but not limited to, government benefit payments, pay records, and bank statements, in instances in which there is a government rent subsidy. The bill would, if the applicant elects to provide lawful, verifiable alternative evidence of the applicant’s reasonable ability to pay, require the housing provider to provide the applicant reasonable time to respond with that alternative evidence and reasonably consider that alternative evidence in lieu of the person’s credit history in determining whether to offer the rental accommodation to the applicant…
https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240SB267
I was a licensed real estate agent in Philadelphia for 20+ years. I heard this from afilliated rental managers. I’ll admit that this was 10-15 years ago, but the problems with S8 in Philly were endemic. Search for yourself, if you like.