Help, advise needed...

[April Ryan]

Here is a video of the project I am working on for my aunt and uncle. I need guidance. I don't know what kind of materials or product I need to finish this wall, and because of flooding how much time I should give it to air it out. Please check out the video any help would be greatly appreciated. Thank you.

https://youtu.be/RBcwT3fcYfI

[Aaron Lovett]

Hi April, 

That looks like a mess.  If it's flooded, you should probably tear it down to the studs at least 3 feet over the high water line.  If you just cover what you have and paint, you're leaving moisture inside the walls that will eventually rot or mold.  Any decent contractor should be able to handle that job, or search "tear out plaster walls" or something like that and do it yourself, since you seem to be a DIY kind of woman.  Once the plaster/drywall is down and you have the framing exposed, you can go back with drywall fairly inexpensively.