Yes, there is either a 2-year or 4-year statute of limitations for debts in California. However, this doesn’t stop the collection agency or the creditor to file a lawsuit against a debtor.

You can respond to the suit by arguing that the SOL has passed, as it could be used as a defense in such cases. But it would be better if you work on your response with the help of a debt attorney to make sure that you are properly represented in this suit.