Even if there is mold up there (and there's a good chance there isn't), disposing of the damaged drywall and spraying an anti-microbial on the wood framing should be all the remediation you need.Put up some new sheetrock, paint, and you're good as new.

Brush and roller, no spraying.I am just finishing up a SFR that I couldn't spray.

No way to spray...Is there some type of rule on sellers disclosing major changes like this?

I bought it from Home Depot 3 weeks ago and it worked fine up until yesterday, I pumped and sprayed maybe 10 gallons of paint through it.

Most of the time that works unless the cats/dogs have sprayed the walls too - then the drywall has had to come out.

The previous owner was a Hoarder and I am sure probably had so much stuff piled up to the ceiling to where if their was any leak to be found, the damage would already be done....there was KILZ sprayed around numerous areas of the property (both bathrooms, kitchen underneath cabinets, in basement area underneath where kitchen is located. 

I called in the professionals and they sprayed as well as baited the area. 

Not spraying the ceiling or trim.

They sprayed 22 days ago and claimed it would take a max of 10 days for all of the bees to die. 10 days came and went and the bees were still there.

1. for rentals, we use a good quality sprayer and can do a whole house in about 2 hours, one guy moving the sprayer and paint and one spraying. prep takes longer, tape off outlets, windows, lights etc. 2. for rehabs, we use a sprayer for the white ceiling, then spray the trim and doors in gloss white. we will roller the walls. on rehabs well leave the doors on and spray over the hinges, since we always install new knobs and hinges in satin or oil rubbed bronze.