I just completed a fix-up on an older house that will now be rented out. The house had water damage in one of the upstairs bedrooms from water seeping through the flashing around the chimney. After sealing the chimney flashing, I went to work on the inside.
It was a challenging project of cleaning the ragged paint and paper off the ceiling, sanding, texturing and then priming and painting.
The photos below are the before and after of one of the rooms in this project.