Should I remove chipped lead paint from door frames or seal and paint over?
If the top layer of paint is peeling/chipping away, it will probably continue to do it over time and you'll be stuck repairing it in the future. Getting rid of the problem would be your best bet which was my over cautious sister's approach. I used CitriStrip and also some Peel Away to remove all the built up paint right down to the wood. No sanding was required to remove the paint, just wiped it off after letting the paint remover do its job. No fumes and no airborne particles. We were then able to finish the wood with a stain and it turned out great.