I read a question and answer about paint around old nail heads after sanding. The answer was remove the old nails. How is the best way to do this? Also, once the nail is removed the paint will still be in the old hole. How do you get this out? What happens if there is some paint left behind in this process?
You will have to pry out the old nails. No easy way to do this or get the paint out of the holes.