What specific actions should I take if I discover the seller failed to disclose a major property defect after I've already bought my California home?

If you discover a major undisclosed defect, your primary action is to document the problem and demand compensation from the seller. If they refuse, you may need to pursue mediation or file a lawsuit to recover the cost of repairs or other damages. Here are the specific actions you should take: Step 1: Document the Defect Thoroughly Immediately gather evidence of the problem. Take detailed photos and videos of the defect from multiple angles. Get at least two written repair estimates from licensed contractors. For complex issues, like a cracked foundation, hire an independent expert to write a report detailing the defect, its likely cause, and how long it has probably existed. Step 2: Review Your Purchase and Disclosure Documents Carefully re-read the seller’s Transfer Disclosure Statement (TDS), Seller Property Questionnaire (SPQ), your independent inspection reports, and the purchase agreement. Pinpoint exactly where the seller failed to mention the known defect. These documents are crucial for proving your case. Step 3: Send a Formal Demand Letter Send a demand letter to the seller via certified mail to create a paper trail. In the letter, describe the defect, explain that it was not disclosed as required by law, and demand payment for the cost of repairs. Attach copies of your repair estimates and expert reports, but keep the originals. Step 4: Attempt Mediation Most California residential purchase agreements require both parties to attempt mediation before filing a lawsuit. A neutral mediator will help you and the seller negotiate a potential settlement. This is often faster and less expensive than going to court. Step 5: File a Lawsuit If mediation fails, your final recourse is filing a lawsuit in Superior Court. You typically have three years from the date you discovered the facts constituting the fraud to file your claim. You can sue for different types of claims, including fraud, concealment, and breach of contract, to recover your financial losses. Important Details and Nuances An "as-is" clause in your contract does not protect a seller from liability for intentionally hiding a known material defect. A defect is "material" if it significantly affects the property's value or desirability. Your case will depend on your ability to prove the seller had actual knowledge of the defect before the sale. Warnings and Limitations Proving what the seller knew can be the most challenging part of your case. Litigation is costly, stressful, and can take years to resolve with no guarantee of success. Strict legal deadlines apply, so you must act promptly after discovering the issue. This is general information and does not constitute legal advice. For complex situations, consult with a qualified California attorney.