I recently had a house in escrow and the the air conditioner condenser was blowing a fuse and we had to replace all the baseboards on the first floor.

Follow up question: all appliance are more than 10 years old (except the central air conditioner/heater).

I would tell them it is what it is and they are welcome to supplement the air conditioner with portable A/C or window units.

You or your property manager shows up to the house on a Monday morning and you find that all the copper was stripped out of it over the weekend including the air conditioner.  

For my own comfort if I was in their situation I would buy my own window air conditioner unit today since nothing will be resolved over the upcoming weekend.

.: Insulation, or lack thereof.Just ran into this one and it really surprised me, but I guess the transition from floor fan to window air conditioner to central air were all upgrades to a better way of living and that pesky outer wall insulation was an expense that just didnt make any sense back then.Energy efficiency???

There are only windows in the front and back of the property, not sides.I calculated that in the summer months if each room has a 5000 BTU air conditioner that would cost about 50 bucks per month per room.

Like everyone else on this planet, we've had thefts on jobs and in at our own properties where thieves took the stoves, refrigerators, dishwashers, built-in microwave ovens, washers, air conditioner condensers and had walls ripped open for the copper pipes and copper wires.

Thanks,Ana @Ana VhanWe own 40 air conditioners between all our properties.   

The air conditioner manufacturers are going the way of the automotive company's so you have to use their parts on newer equipment coming out.