I doubt whether a tax advocate will help in a dispute where both parties are claiming different things. this is a question of facts in the case where each side is claiming something different, it can't hurt to contact an advocate but in the end you may need a tax pro. warning. since this issue dates back more than 3 years and you did not respond to notices you may be out of luck. if you owe the IRS can come after you forever, but generally there is a 3-year statute of limitations for claiming a refund. the pro will let you know what they can do for you if anything.
