@Jake Handler is definitely someone to talk to as he mentors new agents.

Link below, so you can consider it yourself.https://www.ncbar.gov/handlers/FileHandler.ashx?

The note says"Existing seven year old system has failed due to major refrigerant leak in the indoor heat pump coil (unrepairable), and the outdoor unit compressor has failed also because of this we recommend replacement of the outdoor unit and the matching air handler unit in the house."

@Denisha McDonald A little sarcasm as in what Spies did with secrets to get them to their "handlers"...Did you got to Tools in MLS for the Tax Assessment and address they send the tax bill to?

A month and two more conversations later with her handler at the psychiatric clinic, and she was gone.

. $75I paid a plumber to to install a pressure reducer valve, fix outside spicket, repair a couple of leaks under cabinets, repair fixtures, install new toilet in 1/2 bath, repair drain line from air handler, $635. 

Quote from @Jake Handler: Is $450,000 your budget according to a lender or just what you think? 

The place I normally went to before my rentals doesn't handle real estate related tax prep. 

Not in your area, but with that much work, I would reach out to 3 local vendors  with the sizes of each house (in square feet), where the air handler is located (attic, closet, garage) and ask them to give you a quote on a package deal to replace them all with whatever brand of unit you prefer (like Rheem, or if you are ok with a generic to save money).  

That furnace is still in operation 4 years later with zero problems a/c and handler works like new.And do have a wall mount CO tester in the unit..it's code.Do you need a whole new system, that's a lot of money to rely on only one bid.Like with car repairs, unless you understand the system and know the (Lingo), there will always be those guys out there who will try to sell you "Blinker Fluid" and an engine rebuild when all you need are brake pads: https://www.youtube.com/watch?