SB529 would do for tenant associations what the NLRA did for labor unions: give legal recognition, protection against retaliation for organizing, and other powerful stuff: https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200SB529
it explicitly gives tenant associations the legal right to enact a 30 day rent strike upon a vote of the association. after that, the landlord has 21 days to respond with what they'll do to address the grievance that led to the strike. if they don't meet, they forfeit the withheld rent for the month. it also gives you a bulletproof defense against an eviction proceeding by pointing out the landlord violated this law.