<prompt> Human: My dad has around 150 000 that he is being taxed on and he wants to put it into something. Hes thinking about extending our single story house to double story, and renting off the second story. I personally hate the idea, any other ideas?  <response>: My dad has around 150 000 that he is being taxed on and he wants to put it into something.well he better set aside what taxes he owes. to my knowledge investing is not a tax shelter. 