In category after category, larger condos and higher price ranges are selling better than smaller condos and lower price ranges. 

If they can't do that, keep shopping.This may require digging up the foundation, sealing it from the outside, and installing a french drain to keep water away from the walls.

Add coconut water or ice tea with the bottled water.

Appears the guests may have left the faucet "on" when the pipes were frozen and when no water came out, forgot to turn it "off".What may have caused the overflow of the sink is maybe the drain lines were also frozen?

Flippers were in the $700K range.

need to get a better range on your ARV and not enough info to judge. 

We have a rented hot water heater that burst and flooded the finished basement.

We went over the inspection report with the agent and he only highlighted the floor and water heater needing replacement.. and that everything else is cosmetic.

Water overflowing the sink, seems more plausible than some missing caulk.  

And with those proceeds, what price range would you be targeting for the residential or self-storage rental properties?