Limp Arbor wrote:

SNIP HAPPENS

But I still need an idea or two on how to lift/support a 12' section
of the two story house where the joists run parallel to the sill
plate.
Like in the side of the house in the first picture here
http://www.coolhouseplans.com/floor.html

Not one of you is clever enough to think of a way to do this?

Depends how much you are paying for the advice.