Your protection against retaliatory eviction
No. California law prohibits retaliatory eviction, so a landlord generally cannot lawfully evict you or punish you simply because you reported a mold problem or asked for repairs.
Retaliation can take several forms — a sudden eviction notice, a rent increase, or reduced services soon after you complained. The timing often tells the story, and a landlord who takes action against you shortly after you raised a habitability issue may be acting unlawfully. This does not mean a landlord can never end a tenancy for a lawful, unrelated reason, but using an eviction to punish you for asserting your rights is not allowed.
The best protection is a clear record: keep copies of when you reported the mold and note anything the landlord did afterward. If you have received an eviction notice or threats after reporting mold, these matters are time-sensitive — talk to an attorney promptly, and a free review can help you understand your options.
This is general information about California tenant rights, not legal advice. Every situation is different.