Some things to consider otherwise:- Paint is likely to outperform stain (in large part due to the pigments) over the long haul- Be cautious when power washing... a lot of damage can be done to the surface very quickly and water can get into places it's not supposed to... consider hand washing with TSP - Be cautious if spraying outdoors... don't want to have the wind carry overspray onto the neighbor's houses, vehicles, or other property (it happens all the time - dryfall paint is one option).  

It's definitely moist throughout, though.

After a recent rainstorm, the walls are moist and mold/water damage professionals have quoted $3800+ to remediate the damage.

What I could see of the foundation was that there were about half a dozen cracks, 2 of which were moist.

I have spoke to them but they have shown me pictures about the moist corner when they moved in the apartment.

Just as you should oil a drill bit going through steel, or add water the the saw cut when sawing cement, add water or otherwise keep it moist. make the asbestos NON-Friable.

Have owned rental for many years and newer tenant complains of moist smell and imagines mold situation in basement.

Way easier but we use pigmented finish plaster so that was it, done.

It's a true zero VOC paint (many paints are no VOC in the base but pigments have VOC).

You should know, though, that it needs a heck of a lot more than just cosmetic work--your shower is leaking inside the wall (hence, the telltale plastic bag taped inside the shower because the moist wall is making the tile fall off), needs to be gutted, new shower tree built.