, and I will negotiate a lower rent, more amenities, or I'll move.
Oh wow, this makes me laugh. I own quite a few rentals and I guarantee if you tried to negotiate like that I'd have no problem not renewing your lease and finding someone else while simultaneously raising the rent. It's not as hard to find someone to replace you as you may think.
Now if you were a good tenant and not a dick about things, I wouldn't raise your rent, but I also won't be making "substantial improvements" as you think you deserve.