My father owns a painting business. He switched accountants because he thought the accountant was charging too much. When he switched he didn't pay any 2008 quarterly taxes and the last quarter of 2007. He started receiving letters from the irs, but he didn't understand, therefore, he did nothing. Now the irs has frozen his personal and commercial bank accounts. Obvious ly now we need to contact the irs. What can we expect the irs to say? Any tips on dealing with irs.