The Lord Abbett Sustainable Municipal Bond Fund - Class F3 (LSMOX) is a mutual fund that focuses on investing in municipal bonds that support sustainable and environmentally responsible projects. This fund aims to provide investors with a combination of income and capital appreciation while also promoting positive social and environmental impact. It is managed by Lord Abbett, a leading investment management firm known for its expertise in fixed income investments. The Class F3 shares of this fund are designed for institutional investors and have a lower expense ratio compared to other share classes. Overall, LSMOX offers a socially responsible and potentially profitable investment option for those interested in the municipal bond market.