These are my own general observations and opinions from practice. Nothing here is legal advice or a definitive statement of California law, and every situation depends on its own facts.
Buying a home in Los Angeles is stressful enough without discovering, three months after closing, that the fresh paint in the guest bedroom was covering something. In my experience these calls follow a familiar pattern: a buyer notices a smell, or a stain reappears, or a contractor opens a wall for an unrelated project and finds what was there all along.
The question I am always asked is whether the seller had to say something. My general view is that California takes disclosure seriously, but the answer is more nuanced than most buyers expect.
How I think about a seller’s disclosure duty
California requires sellers of most residential property to give the buyer a Real Estate Transfer Disclosure Statement, and my reading of the law is that a seller is generally expected to disclose known material facts affecting the value or desirability of the property. Courts have also long recognized a duty to disclose known defects that are not reasonably discoverable by the buyer.
Applied to mold, my view is that the key words are known and material. A seller who dealt with a recurring leak, had remediation performed, or received a contractor’s report is in a very different position from one who genuinely never knew. Actual knowledge is usually the battleground.
What tends to matter in these disputes
In my experience, a handful of things drive whether a buyer has a realistic claim.
- Evidence the seller knew. Prior repair invoices, insurance claims, remediation records, emails with contractors, permits, or HOA correspondence. Documents are what turn suspicion into a case.
- Concealment rather than silence. Fresh paint over a stain, new drywall in one small area, or a rug placed over damage tends to be viewed very differently from simple non-disclosure.
- What the disclosures actually said. I always want to read the TDS closely. Sellers sometimes answer “no” to questions about water intrusion where records suggest otherwise, and that inconsistency matters.
- What the inspection found. A general home inspection is visual and limited. My view is that a buyer is not necessarily charged with knowing what a non-invasive inspection could not reveal, though sellers often argue the opposite.
- The agents’ roles. California also imposes duties on brokers and agents in residential transactions, and depending on what they knew, they can be part of the picture.
The “as-is” question
Nearly every buyer asks whether an as-is clause ends the conversation. My general understanding is that it does not eliminate a seller’s duty to disclose known material facts. As-is language typically addresses the condition a buyer accepts, not a seller’s right to conceal what they knew. I would not treat it as a reason to give up.
What I suggest doing early
If you think mold was concealed, in my opinion the first hours matter more than people realize.
I would photograph and video everything before any repair work disturbs it. I would keep the affected materials where safe to do so. I would gather the transaction file, including the TDS, inspection reports, escrow documents, and any communications with the seller or agents. Where appropriate, I would get a qualified professional to assess the condition and, importantly, to give an opinion on how long it has likely been present, since age is often central to proving what the seller knew.
I would also be careful about repairing everything immediately. That instinct is understandable, but in my experience rushing to remediate can destroy the evidence the claim depends on. There is usually a way to make a home safe while preserving proof, and that balance is worth a conversation.
Remedies buyers sometimes have
Depending on the facts, buyers may look at the cost of remediation and repair, the difference between what was paid and what the property was actually worth, consequential losses such as temporary housing, and in some cases claims sounding in fraud or negligent misrepresentation. Where conduct is proven to be particularly egregious, additional exposure can come into play. Which of these fit, and what they are realistically worth, depends entirely on the evidence.
I would also note that timing matters. Claims are subject to limitations periods, and in my view waiting while you try to resolve things informally with a seller is one of the more common ways buyers weaken their own position.
If this is your situation
I handle real estate disputes and toxic mold matters in Los Angeles, which means these cases sit squarely at the intersection of what I do. If you would like me to look at your disclosures and documentation and give you my honest read, consultations are free. Call (310) 556-9692.
Again, the above reflects my general views and experience only. It is not legal advice, and reading it does not create an attorney-client relationship.
Related reading: Los Angeles toxic mold attorney · Real estate disputes · What is a mold case worth · Types of mold testing
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