I couple it with a standard AC condensate pump if I can’t put it in a shelf to gravity drain.

The technician can put a used condenser (will fill with R-22) for $500 and a new setup from around $4000.

Then, Try cleaning the condenser and evaporator coils.

If the ceiling is under insulated and gets cold compared to the inside temperature, that can cause condensation to form.

Because when the roof needs replacing or her compressor on her condenser goes out you can’t call her and ask for 2k she will be likeYou’re the landlord!!

The contractor said there was a greater then 1/4 inch layer of stuff all over the AC condenser, so cleaned that all out.     

The condensers are outside next to each other.

@Johnny Dang My wife and I just recently replaced our outdoor condensing unit and evaporator coils in the attic of our personal residence here in BR.

You might consider buying spare filters, so when you go for a maintenance visit, you can just swap in a clean one and take the old one back with you to wash later.They should tilt towards the outside of the house a little bit, so the condensation drips out the back. 

That's a condensed version of what's involved, of course, but suffice it to say it's quite different than a typical wholesale deal and a heck of a lot easier to find a homeowner willing to agree to terms.