Not sure what you mean by "Houses for 2 dollars". To my knowledge there are no such homes on the market at this time. Is it possible to "buy" a house for $2 dollars? Sure, but that is highly unlikely in today's day and age... Most "sales" of a nominal or $0 are usually for the transfer of ownership on paper...
Feel free to contact me if you have questions or if I have misunderstood your question.