I voted in favor of legalization, but I believe in property rights first. I don't believe there's any way this can be classed as such. Don't like the landlord's no-pot law? It's real simple to fix: go somewhere else.
Employers also have this right, drug testing (even for desk jobs) can continue. There are even employers in this country that deny employment to tobacco smokers.
But smoking pot is a lifestyle choice like homosexual relations and we’ve seen how that have transpired.