Mealey's (December 10, 2018, 8:52 AM EST) -- ATLANTA — The U.S. Tax Court did not abuse its discretion in its rulings on expert witness testimony and properly upheld an Internal Revenue Service tax adjustment and penalty for a family-run investment company for participating in a tax avoidance scheme, the 11th Circuit U.S. Court of Appeals determined Dec. 6 (Curtis Investment Company, LLC v. Commissioner of Internal Revenue, No. 17-14573, 11th Cir., 2018 U.S. App. LEXIS 34392)....