Re: How do I removed Textured wall paint
Test small patches.
Depending on the kind of texture, you may be able to get a lot off with a sc****r - less dust than the sander.
If the top paint is latex and it was applied over an older oil base paint you MAY (and that's a big one, MAY) be able to scratch the surface a bit, dampen some and get it to separate from the underlying layers. Test this, it's like getting paint off varnish or shelac, sometimes it works, sometimes not.
No matter what works, it's likely to be a large-type mess. Wear the proper gear. If you sand, wear a mask. A good one.
"I think that's gonna leave a mark."