This document discusses partnership taxation and abusive tax shelters. It provides an overview of federal partnership tax audit proceedings, summarizes the 2013 U.S. Supreme Court case U.S. v. Woods which involved an abusive tax shelter, and concludes that attorneys should avoid assisting with abusive tax shelters due to the risks of penalties and malpractice litigation. The Woods case found that partnerships formed solely for tax avoidance and lacking economic substance can be disregarded, and the valuation misstatement penalty applies when partnership basis is inflated.