NEW ORLEANS, Feb. 9, 2018 /PRNewswire/ — Former Attorney General of Louisiana Charles C. Foti, Jr., Esq. and the law firm of Kahn Swick & Foti, LLC (“KSF”) are investigating the proposed sale of NuStar GP Holdings, LLC (“NSH” or the “Company”) (NYSE:NSH) to NuStar Energy L.P….
