McCain Law Firm: Resolving Tax Issues Today, Avoiding Tax Issues Tomorrow Receiving a letter from the IRS or Tennessee Department of Revenue can be a terrifying experience. Many people are afraid to even open the envelope. However, the worst thing you can do is wait. At McCain Law Firm, we know how scary it is to be audited or to receive notice that you owe a tax debt and collection actions will be taken against you. We are here to help. Together, we will create a plan that minimizes your tax debt, protects your assets and helps you avoid tax problems in the future.