Mello roos are typically CFD bonds that mature at different intervals. Most common is a 30 year term. The information is public and can be accessed at your county tax assesors website. When you purchase a home there is also a disclosure called an NHD (Natural Hazard Disclosure). All the tax information pertaining to that property is in the back section of the report and should detail the maturity date. If you have other questions, you can reach me at 209-662-0847 and I will be happy to answer them.