In the law firmsSheppard Mullin Richter & Hampton LLP is representing Chicago-based Invenergy in its acquisition of development rights in the Grain Belt Express power transmission project, pending appropriate regulatory approvals.The Grain Belt Express high voltage transmission line will provide homes and businesses with electrical power.The Sheppard Mullin attorney group representing Invenergy is led by special counsel Matthew Bonovich and associate Daniel Knudsen (San Diego), with Benjamin A. Huffman, Megan Pollard …