You can also get multi- evaporator system that runs off one condenser but those are pricey.

I nkow I could add an A-coil and condenser to the furnace for central air, but in this price range it doesn't really matter if they use wall ACs.I think I answer my question already, but what do you think?  

Central air is when they put a coil and condenser on the the forced air system so that the duct work is shared between the two. 

Most likely the drain pipe is clogged which I can service or take care of myself but the repair could be more expensive....Sounds like it could be a clogged condensate line.

I'm a newbie here so please be kind but I've spent a few weeks now on the site gathering up all kinds of great and free information from all of you so time to pay it back with a suggestion that i think could make sense for the BP crowd (also i apologize as this has turned out to be a very long reply but I couldn't figure out any way to condense further while still somewhat explaining the concept).   

My HVAC guy is charging me for the following: adding a 70K BTU gas furnace, a 2.5 ton AC condenser, 40 gal water heater, all ductwork, registers, gas piping, thermostat, permit drawings: $11kI don't know if this is a normal price, but it's the one we decided to go with.

If this occurs, quickly dry carpets (if carpets stay wet, notify the landlord).Use the kitchen fans when cooking.Don't run the shower to humidify you home.Avoid using humidifiers unless there is a medical reason to use one.Ensure good air environment in your home to prevent condensation on cold surfaces open windows when possible don't block supply and return registers with furniture keep a few inches of space between furniture and walls don't let parts of your home get very cold (such as closets against exterior walls)Watch what you put down drains to avoid clogging and over-flowsWhen moisture problems do occur, it is critical to quickly report the cause of moisture and to dry affected areas.

If you are at the third attempt, that should be a good time to see if the seller can lobby for a new condenser to be installed, given the first two visits are on their database for the same issue.

@Edith TenBroek  Many REOs have had copper stripped, and often the condenser of the HVAC system is gone.

condenser units stolen like crazy  etc etc.. then they just give up and walk away and get blamed by the very neighbors who did not take the time to help watch their property or it was their cousin that came over and stole everything when the tenant left..