The plumber will likely have to cut open the ceiling to confirm and make repairs, so you can save a little money by learning how to do that yourself, confirm the problem, and then call the plumber for repair, then patch the ceiling yourself.As Jonathan is trying to point out, it's important to expect these things and have funds on hand to deal with them.

Security Deposit: 2600Lease states no smoking/painting walls/no hanging things on wallsTenants have moved out and have left two truck loads of garbage to be removed.Damaged doorPainted walls which got on the ceiling and trim Lots of holes on the walls throughout the houseDamage from windows being left open constantly Weed was clearly smoked in the house (smell throughout the place) so we need to deep cleanWater bill wasn't paid so I had to turn back on utilityMissing keyQuoted costs:$450 junk removal (some furniture)$935 for damaged doors/windows, painting cleaning$30 for utility turn onTenants were only there for a year before moving out so a lot of this is beyond normal wear and tear. 

I was aware of the egress requirement, but was not considering the door size or ceiling heights.

A ceiling has collapsed and the property is not safe to enter.

Holes in ceiling .

if its a true condo you only buying the airspace.. so any defects in constructin the HOA has to pay to fix.. so the ceiling work should be on them. 

I'm considering new floors, fixtures, countertops, windows, removing popcorn ceilings, etcetera.

Requires some pre-planning if the ceiling height exists. 

The property has a massive 900+ sq ft attic with very tall ceilings that would make a perfect 3rd unit potentially grossing another $1000 per month. 

The grout between the tiles allows a run off of water and a gripping surface for your feet.3. if you’re smart, use durock on the walls too, right up to the ceiling.