Our house was built in 1950 and has plaster walls. Some of them have wallpaper that I'd like to remove/paint. I know that some of the walls have paint under the wallpaper, which I'm sure is lead based paint. I want to paint the walls, so my question is do I paint over the wallpaper or try to remove it? I'm worried about lead paint exposure (I have a child). Can you effectively remove wallpaper from plaster or will it damage the wall? If I paint over it what would be the best way to get a good finish? Help!