The RiverNorth Opportunistic Municipal Income Fund, Inc. (RMI) is a mutual fund that focuses on investing in municipal bonds. These bonds are issued by state and local governments to fund public projects and services. The fund seeks to provide investors with a steady stream of tax-free income by investing in a diverse portfolio of municipal bonds with varying maturities and credit ratings. The fund's opportunistic approach means that it may also invest in other fixed-income securities, such as corporate bonds, to take advantage of market opportunities. RMI aims to provide investors with a high level of current income while also preserving capital and managing risk.