Diane is big time correct! The amount of time you may reside or work in the US is less than thirty (30), yes thirty days, for consideration to officially live outside the US. Your passport will reflect that! Don' bother trying it because IRS, Customs and Immigration are on the same computer!
They won't be off your back...they will be on your back.
We had friends that were tracked by Facebook, emails and car and drivers license info! Big Brother is watching....you!