The $6,500 Tax Credit ~ How does a current home owner qualify?

Good blog, that seems to clear up the tax credit for the existing home owner.

Thanks for posting

I often wondered about non-married couples who own a home together?  If two non-married people own a home together for 5 years, sell it and go their separate ways would they both be eligible for the tax credit if their incomes were under the single maximum rate?  If these same two people don't go their separate ways but buy a second house together can only one of them apply for the tax credit?  I assume only one tax credit per home applies, not per unmarried person. 

Also, I know the new home the existing homeowner purchases has to become their primary residence, but is there also a 3 year minimum occupancy needed for this tax credit like the New Home Owner Tax Credit?

There are so many "What if" scenarios that the current information released on this tax credit does not cover.  Can you recommend a good website to find all the answers?

That is what I thought.  Usually I am pretty good about finding the answers, but this time I came up with nothing. 

Ironically, last week I ran into a couple where this question was asked.  They were an unmarried couple who wanted to buy a house together and wondered about the tax credit.  I told them to talk to a tax professional.

Thanks!