The 1099 Reporting form can be viewed here:
http://www.charlesjones.com/cgi-bin/forms.cgi?state=1&id=14
THe occupancy question goes as follows:
(YES OR NO) I owned and used the residence as my principal residence for two or more years during the FIVE year period ending on the date of the sale or exchange of the residence
The debate on this issue involves the definition of primary residence as per the tax code and the IRS regs....and how case law has ruled. Tranquility and I have been debating the issues based on those factors.
Tax law is a funny sort of animal, because only "authority" can be used in court. For example, one would assume that the IRS forms and publications would be "authority", but they are not....and its a well known fact that they are sometimes incorrect. Therefore, one would not use an IRS publication or form instruction in tax court, unless it was on the basis of "please don't charge me the penalty because I didn't know that I couldn't rely on the IRS Pub.".....and that might only apply if they didn't use a professional preparer.
What you quoted is totally accurate in most circumstances. However its not accurate as applied to divorces and legal separations, (which Tranq and I agree upon) and based on my research (backed up by tax professors) its not accurate in an informal separation.
Tranq and I have basically been debating whether or not my tax professors were correct or not...LOL...since I got a A on the case study.
The bad thing about tax law is that its incredibly complex. The good thing about tax law is that its also often very cut and dried. Emotion doesn't enter into tax law....at least in front of the judges...I can't say catagorically say that emotion doesn't factor in with an IRS agent....but it doesn't with the judges.
We won't definitely solve this issue on this forum. I won't spend the time to re-research it without a paying client and I doubt that Tranq will spend the time to do it either....and even if either of us went to that trouble to re-research it, its basically moot for the OP.
Someone in this circumstance needs to get a tax professional involved. Why? Because the cost of win/lose is directly related to the validity of your arguments. Penalties are tied to "reasonableness". Someone could lose in tax court and be assessed no penalties at all....or someone could lose in tax court and be assessed severe penalites.
Or someone could be famous and get their butt kicked for example purposes only.