This is not true at all. Giving a yes/no determination for Mello-Roos districts is only the first step. Sellers of property must also provide Notices of Special Tax describing each of the Mello-Roos districts the property is in. These notices are part of the legal disclosure requirement.

Additionally, since the passage of Senate Bill 1122, property sellers must also provide disclosure for 1915 Act Special Assessment Districts, including Notices of Special Assessment. Without these disclosures, the seller is in violation of California's property disclosure laws and subject to liability.