First Trust Intermediate Duration Preferred & Income Fund (the Fund) is a non-diversified closed-end management investment company. The primary investment objective of the Fund is to seek a high level of current income. The Fund has a secondary objective of capital appreciation. The Fund has investments in various industry sectors, such as banks; insurance; electric utilities; food products; capital markets; diversified telecommunication services; diversified financial services; wireless telecommunication services; consumer finance; oil, gas and consumable fuels; energy equipment and services; diversified financial services; independent power producers and renewable electricity producers; equity real estate investment trusts; metals and mining; multi-utilities; industrial conglomerates; transportation infrastructure; telecommunication services, and Internet software and services. The Fund's investment advisor is First Trust Advisors L.P.