Any advice for not paying tenants?

[Brenda Yogyog]

I inherited 3 tenants that are not paying in Sacramento, California. These tenants did not show any hardship certification due to covid. One tenant decided to stop paying for 7 months now, another tenant stop paying for 4 months and 1 tenant for accumulated 2 months balance. 3 tenants are not showing certificates of hardship due to covid. Only one among these 3 are showing 25% effort to pay the monthly. Previous landlord gave me cash back and discount to cover for income lost hoping the eviction moratorium will end this January but it seems it will be extended. Any problem solving ideas.