Chicago Tax Lawyer Welcomes You! Mr. Andrew Gordon has represented many individuals and businesses with sales tax problems, tax collection problems & audit. A tax attorney will handle every aspect of your case. This person will make every phone call, write every letter, and go to every meeting. When it comes to dealing with tax authorities, there is no such thing as a routine tax audit, call, or letter. They should never be overlooked or taken for granted. There are no salesmen or assistants working on your tax audit case, but we do rely on a select group of CPA’s and professionals to help us develop your case. We will then present it to the IRS and Tax Court judges.