Ford is a great work truck and the BMW had 130k miles and a 2" thick folder for all past service record back to 85 when it left the lot (over $38k in preventative maintenance and upgrades over the years, New clutch and trans in last 10,000 miles) I am the second owner and justify this purchase because I like to tinker on cars and I could sell it tomorrow for $3,000 easy.

In GA you can get  a humid heat where you are drenched and the air is so thick it is hard to go outside for more than 10 minutes to breathe.We haven't had that kind of brutal heat for the last few years but it has came back this year.I wouldn't expect a business or a residential tenant to do business or live here without proper cooling.Third world countries are acclimated to living in 90 or 100 degree heat but that doesn't mean it is a positive for their health because they have to live that way.I guess I am in the minority here and that is okay........... : ) I guess if I lived in a state where it is 30 degrees or below most of the year I would look at it differently as heat being more of a necessity.   

The math on those calcs is fairly thick with the employer and employee contributions + the Self Employment tax.  

Also I have really thick skin, so any criticism will not hurt my feelings its business.Thanks in advance!

(Age of home, insulation, door and window type, wall thickness, etc..).$4100 is a good price for replacing the system.

Tankless returned was not knowing how to install (some plumbers are thick).So you have some choosing to do: are you attempting to make your rental units more appealing to current/future residents by having 'more efficient' appliances? 

Just for perspective, from a person on the outside looking in (with no dog in any fight;): The gray bars are recessions, the last (thick) one being the 'great recession'.

Thick 100 yr old, 6"+ with detailed moldings.  

I guess most of us have developed thick skin as landlords such that we simply ignore the tone and deal only with content.The ignore button is a valuable option on the inter web.

Happy to talk about that anytime, as I'm in the thick of it.