Steven Bornfeld wrote:
I write in hope of some serious answers. I know this general issue
has come up before, and wading through the incredulous and the trolls
doing a search yields nothing that seems likely to work. Maybe there
is nothing; if not, so be it.
We just moved into our new home after over 7 months of renovations. The
problem is cigarette smoke from one of our neighbors.

[...]

You could agitate your local elected betters to prohibit people smoking in
their own homes.

The current political thrust in some communities may well reward you with
the appropriate legislation.