Ms. Lach is a partner in the Tax and Litigation Departments of Arnstein & Lehr LLP. She represents clients before a variety of different tax authorities, including the Internal Revenue Service, the Illinois Department of Revenue, and the Illinois Department of Employment Security. Ms. Lach represents both businesses and individuals in income tax, sales tax, and penalty controversies, and in IRS audits, and liability settlement negotiations. She has represented a number of individuals before the IRS on innocent spouse claims, and in offshore voluntary disclosure cases. Ms. Lach has had cases pending before the U.S. Tax Court, U.S. District Court, and before IRS and state administrative agencies.