I suspect I may not be able to prime and paint these walls as is. I have a few sections that still have the original sheetrock paper and some where I had to remove everything up to the brown/torn/rough paper when I was scraping the old paint off.
I did a lot of reading and I am of the opinion that I must apply a thin layer of joint compound to these brown/torn/rough paper spots and then sand them down to a smooth surface. The rest of the walls I should be able to prime and paint after wards.
I would like to ask if I am on the right track or should I be doing something else.