So IRS revenue officers are field collection agents and they spend about fifty percent of the time in the field going after taxpayers and/or chasing their assets. So if a revenue officer shows up your home or place of business, understand you're not obligated to talk to the revenue officer.
The best thing you can do in that case is to get the revenue officer's card and any paperwork that they have to hand to you, and then go see an attorney as soon as possible so that you can deal with the situation. Understand that whenever a revenue officer takes the time and energy to come to your home or place of business it's a fairly serious matter.
The IRS views you as a serious collection risk. That's why they've signed and sent an individual field agent to come see you. Revenue officers generally require the assistance of an attorney because when things turn south with revenue officers they often get really tenuous for the taxpayer, so when you have a situation with a revenue officer, exercise your right to remain silent. Get your attorney involved and let us do the communication going forward. It's the easiest and smoothest way to deal with the situation and to avoid conflict in the future.