The law firm of Patrick T. Sheehan & Associates represents individuals and businesses before the Internal Revenue Service and the Illinois Department of Revenue. Our office of Elmhurst tax attorneys have successfully resolved tax problems for individuals and businesses since 1991. Although our office is just outside of Chicago, Illinois, we represent clients is the surrounding Chicago suburbs as well as all over the United States and some U.S. expatriates living overseas. Our experienced team of tax lawyers assist clients with unfiled tax returns and all types of unpaid tax liabilities and penalties.